Resonant Card

The Resonant Card is the Tho'ra Clan's pocket-format personal-identity and field-credential artifact. A credit-card-sized object that carries (Mk0) the operator's sigil and natal summary as printed/engraved data, or (Mk1+) an NFC + secure-element chip binding the operator's natal chart, clan standing, and current Psi-Tech loadout authorization. It is the smallest unit of PsiNet identity that an operator carries.

Overview

A Resonant Card can do, layered:

• Identify — sigil, name-rune, clan standing visible to other Tho'ra.
• Authenticate — NFC + secure-element + signed payload for HelmKit calibration and Psi-Tech module pairing.
• Carry context — encrypted summary of natal chart, allergies, declared comms keys.
• Witness — countersign by other Tho'ra (Mk2) builds a web-of-trust independent of any central registry.

Theoretical Basis

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Epistemic status: [[ Category:Provisional Psi Claims|PROVISIONAL]]

NFC + secure elements (e.g. ATECC608, SE050) are commodity authentication primitives.

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Epistemic status: [[ Category:Testable Psi Claims|TESTABLE]]

A web-of-trust countersignature scheme is more resilient than a central registry for a distributed Clan — this is a falsifiable architectural claim.

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Epistemic status: [[ Category:Speculative Psi Claims|SPECULATIVE]] Theory anchors: Astrological Frequency Harmonics

The card's chip-stored natal payload, when read by a HelmKit Mk1+, materially improves the Psi Harmonizer's entrainment target accuracy versus manual chart entry. The "material improvement" is what's testable.

Subsystems and BOM

Mk0 (target ≤ \$15)

• PVC or metal blank card — \$3
• Engraved sigil (laser engraver service) — \$8
• Printed natal-summary back face — \$2
• Optional QR code linking to the operator's signed public key — \$0 marginal

Mk1 (target ≤ \$50)

• NTAG215 NFC tag with secure-element side-channel (ATECC608A) — \$8
• PCB card form-factor + antenna — \$10
• Anodized aluminum or brass face plate — \$15
• Laser engraving — \$10
• Issuance tooling (one-time per operator) — amortized

Issuance flow: operator generates keypair on a HelmKit Mk1; issuance host countersigns; card is provisioned with public-key fingerprint, signed natal payload, and a clan-standing token.

Mk2 / Mk3

Mk2: countersignature slots ("witness chip" — up to N other Tho'ra can append signed witness records). Mk3: integrated with the Earth Intelligence Network identity layer and the Resonant Finder consent registry.

Build Notes

• No biometric. The card identifies an operator; it does not biometrically bind. A lost card is a revocable credential, not a stolen body part.
• Revocation. Every card's public key is publishable; revocations are appended to a Clan-signed revocation log (Mk1 paper, Mk2 EIN log).
• Pairing. HelmKit Mk1 pairing is short-range (NFC, ≤ 4 cm) and one-shot per session; no continuous bind.
• Wear. Daily-carry; anodized aluminum face survives reasonable abuse.

Safety and Ethics

• Card data is local-first. NFC reads are explicit-action; no continuous broadcast.
• Natal payload is encrypted with the operator's keypair; only paired HelmKits can decrypt.
• Revocation must be possible without central authority; the Clan does not run a card revocation server, the revocation log is gossip-propagated.

Maturity (Mk0 → Mk3)

See Tho'ra Tech Maturity Levels for the convention.

Mark	Phase	Status	Confidence	Evidence Base	Next Validation Gate
Mk0	Cosplay-type	Complete	100% (symbolic)	Ritual + build practice	User satisfaction
Mk1	Prototype	Active	—	—	—
Mk2	Test-type	Planned	—	—	—
Mk3	Production	Projected	—	—	—

Failure Modes and Mitigations

• Lost card. → Revocation appended to gossip-propagated log; replacement issued.
• Cloned NFC tag. → Secure-element side-channel (ATECC608) defeats simple cloning; revocation handles compromise.
• Compromised issuance host. → Multiple issuance hosts (federated); operator keypair is operator-generated, never issuance-generated.
• Card surface scan in public. → Sigil-visible side is public-by-design; identity-bearing side requires NFC tap.
• Witness graph attack. → Mk2 byzantine quorum: standing requires ≥ K of N witnesses from the rolling Clan registry.
• Operator chooses not to carry one. → Optional; absence is not penalized. The card is an affordance, not a requirement.

See Also

• Tho'ra Clan
• Psi-Tech
• HelmKit
• Psi Harmonizer
• natal chart
• Earth Intelligence Network
• Tho'ra Tech Maturity Levels