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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4debe3d3d6d737d7016f66d14b212a5a756ea1376e1f46c554168b58b33a0cc9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e7e8aba-30c8-4e29-aa24-534864a47419.json and https://artists.proofprofile.net/proofs/artist/9e7e8aba-30c8-4e29-aa24-534864a47419.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Purify Our Hearts (Refiner's Fire) - Live
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca653ccd1c7e5fa7aa9d0d1dc8055ca2780dd6044cfc1824db6bdd7edd2b7c3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZR8E2400125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5923e3be3d8efcc80d3c11f8daf7c43297483c3713fba2fa142f0aeeb5b18ba. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMFME2196647.
Be Glorified (Spontaneous) [feat. Justus Tams]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62afa21dc977d5ffd85d846431695dc9a1bb2239931fffe8d39a1eebca6686d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMFME2196648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72615429f173bf33942cc783f4adb2b8f248ff065f423ca3ad05e401a8e9a82d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZR8E2400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea66c24454cc5af4d1bdbd403d32eb128c0ec971d51d6eec604a480f5d5efa9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZR8E2400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921ddb3d9a29ac7c40bf33d1fb3ee6f80416861298b9bea80eaa9d4c25678084. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZR8E2400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b3e1fe576223a204ca58a95c36a8f95ce0e7d0bafe3864d8497d5729e4e109. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZR8E2400134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a548d098a3d5db3aff9078156c514cf05b735b1d80e4fd47e97af07b39bf42f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZR8E2400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd549333833cf46c5fbcdee6e8174e32a77c6622a1e92abfdd14c07b78d44f862. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZR8E2400142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2f2decacafbbb8b538ae415a408bcda25c01c53e5603233e542fd8e1ce6abd. 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/QZR8E2400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4897aee965a4934eb9c1fa7168a7039973ff26d5d4ef4ba20578e0332dda7082. 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/QZR8E2400144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e199121e7e1e40d90fd4c346a142de36b59b903fb9dbfe1b9282fffa099b10. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZVR22500202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c1c3ce551c039133e9bd40736c5dd9c2177725d790df720e66526e0fdfeb9b. 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/USUM72414592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21322b78bc240a49e626c78448142fff90d570ab4ce8838069645be773c34348. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USUM72414593.
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