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 0xb59bc989499e90dd0493d7653ec02e71f765bc857e370e7f9cb140226fe968e5. 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/9c2688bb-adc6-4c8e-8a0b-833af1d9a145.json and https://artists.proofprofile.net/proofs/artist/9c2688bb-adc6-4c8e-8a0b-833af1d9a145.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
New Classics – zum Entspannen und Genießen
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 0xc5eb007c064b2562f457b31533391a8b602d007f84b8fbf44e1d218c5dc7b669. 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/DEN961202120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538d35c03a7c689942e592af2837752db042e2903ed7808b51569a94a0fe2a6b. 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/DEN961202175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb72ac0324d8b7b1c3c33eb167d1aa0bfcdae4a97ce6a15bc4ca14d2e80aaeba. 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/DEN961202100.
The Lord Bless You And Keep You: Meditation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d349c887ee65cd976bc1415edc920d06bf2290c89573b6a5833012db41f9e7. 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/DEN961202110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5eb007c064b2562f457b31533391a8b602d007f84b8fbf44e1d218c5dc7b669. 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/DEN961202120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c83825e1ca83607f6dda88f8b744a2b705bef2ffeb4c00ca701835c4e01e8dd. 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/DEN961202132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3e6589f7e86bf0b1dbde78126939453f9b567ff18c78b24f054a65f97887c5. 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/DEN961202133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc8617d329688459e9ab6ab92b85c8cf77712be711b1d6481659fb13a95693c. 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/DEN961202171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54eb81eb8a32c20486fc24c2b7e28f844ed344db240c72be21840ec0f4c52ce. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEN961202173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505b09be22972090b512cf1f77cb4c7df6e42dbb02711178ec55439f860ed670. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEN961202174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538d35c03a7c689942e592af2837752db042e2903ed7808b51569a94a0fe2a6b. 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/DEN961202175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22531c105a76fad4e2ffa1680b3ea6bfcddd03f9593841244a3cf28d248e2a88. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEN961202176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31cc87fc4754f6fb8d92244cc24326937cbe2492acb5a30d6931de9ee3b1926. 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/DEN961202180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba917a1a4742fa3ad440eebf77d5943b3494fcee9065e8e74594478c1f707e5d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEN961630301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7b9a993baaeb662485e122c0922d1f74c0074776b90cfc1db8ee1f09b45660. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEN961630302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43308927d9904541e90aefd4540ba9e9104ee1e7026d2f59b1628d605e0d8d0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEN961630303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfe47ae1b9770880bb01c9508070fa7c3f4621d80f78bfefbdb25bc414a4093. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEN961630304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136fb659f9d3cbfd5552664686b934b180681ec3e7f643760b6d232ea4a11c29. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEN961630305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956d995306b307fe09b0637b87af436607054a853f20c7062541eeb468a97d10. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEN961202131.
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 0x21f4b93cb965b83acda00c89c4a40f0b9377b358362e48c93865e841cff2f90e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEN961202172.