1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f10b9ec081eefbea90c869c712fa2ba4b5302435412c16f9d44b2d8d898e11. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce3346b6-ded3-429f-9959-e2c669fac8f8.json and https://artists.proofprofile.net/proofs/artist/ce3346b6-ded3-429f-9959-e2c669fac8f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Zakouweesky (Tenpenny Bit - Jump at the Sun)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a612c7f1c73f41a5f84243220745c8992dc54cd4fee81d367687b30c6c06e0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12200722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3d9e4ffe17f722eba21b1a7e89fa21e05eace0fc47d95ff7bd9c625977f4de. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12200723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af066fd541e30f71e2edafa39bff6965ad339f5961ef981251cac7c90e0edeb. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12200725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c72d841956dba31e4867729c3cee9313b641551ff0e6335050a85de3574ab4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12200726.
Say's Gi (Sight of Land / Humour of Castelfin / Temple House)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05265ffb3adc0327eb702ccc51163108562b7516c7360ef5d1d9e5b136e0e07f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11910679.
Strawberries and Raddish (Monaghan Ji / Drowsy Maggie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075e92820d5927e3b957b3ca7c7f9bdf0583e38ba1f80ece2b45f3f98138adfc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11910673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a98e0abb257b3bee938225af48d7eebc45f85563e2011d4c278c9319e79574. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11910680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb812a82418ea08d53a66e2c033102ceabf4d23f9c34fae61a0abf896cb38c2be. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11910678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024018a2d5fac8f8ad602e04d8c564fb17a853b488726b8a83617659877559a0. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11910681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd91fb4ab68ec3dbafa02105f28777170e1cdf0502e223ac73b07b6a938a422e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11910682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b456a0c6a49275f34d07877c9781d5ea12a42475c9a545780f56504bee214e8. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRPAB2209005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0147bf4e4ececea15374076717d7b986383fe819a89709f4e9b35925dbec1e0. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRPAB2209012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9280c09040e4a532d8e63b967596f0318f8628e28cb26d8ae746ebd12f7e72. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR5R00912669.