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 0xbff5a3b2c3ce5500e2c07d750aebb0638945c6c1134c390a5cecd1b9966f8cfd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16e8957e-818a-456a-81aa-d8b418adb4d4.json and https://artists.proofprofile.net/proofs/artist/16e8957e-818a-456a-81aa-d8b418adb4d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x47e784a11fa95c8a5d6c6bbd278ace4bc2cf334193940bef97db5a4c81cd62b9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEXN82448732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7491094d9935ff7e277529582973fbc3f468dec7a33fcbe9b70eb5c4264a79. 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/DEHK92103381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59477c2bad06dcdeabd752c5e566370d2f55793d821a9a051cd3a20bc0e6fe16. 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/DEZ380900280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c82c1072e02d2f661f9c20164eea2f9ec25e234962aad85d5ae48b5da39f492. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEZ380900162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76c04229aaad748ddbfd5bb86e1ccdb28ec74b65ce1e6eaa2b9cedd1295acfd. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DEZ381000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b80088a6e979a44a6e76a3705308127ee60a760843689ac8f7f7061e2a31988. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEZ380900360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3b6ae37c7111bfdaf9c781f231bc0191cee973ec4a5f7444c4448c6cd73651. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEZ380800242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd8924267c5f46b8a9fafa4761feb9a894716a816b58efdd233b9a99c214851. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEZ380900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608ba23ba41fbd29e608174a044210e3d6be47eac7249fbe026571f7914d3e16. 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/DEN982342522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262e2af33e1221c37450deda78d72da44e39ba8440d54a287d7933b6ce343ba7. 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/DEN982142031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c95e4e9cd467a4a1aece86d741a0a1ef10d517430ac0eb10e44fd163fcd81d1. 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/DEN982041622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d2b85a81a0b7af5dc449b350d3838e9c9317afc4d51136ab631521e78634f5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEN981840741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19fbfde81532b99e338dd3b0d754d4429d255e7bf97b17c1cc2436dc2e39d61. 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/DEN982342483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46251a2c5a5c5360522aae40dc41d9bf904495d5aae7a5baf1bdcf5fe3db99d8. 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/DEZ381200270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b4fed9b7d07feb2439a4d0ee3919b38139adda006914f667d0e54440b6e5ca. 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/DEZ381200271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1ed959bcb0949d4adf4b809ff5537732a8a3ce482545db2a21be845afe0efe. 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/DEZ381200070.
Spotlight - Michael Mind Project Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e141648f763c4506128381f5e115d9168ecbe11e09e3e9341baf379731c249. 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/DEZ381200073.
Rhythm Is a Dancer (Kindervater Remix Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb79cf64f92419cdb3ae187308cd3b838d9fae51ee9050176904d3d5ba75ed9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEC220900110.
Rhythm Is a Dancer - Kindervater Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb79cf64f92419cdb3ae187308cd3b838d9fae51ee9050176904d3d5ba75ed9. 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/DEC220900110.
Mysterious Times - Kindervater vs. Jens O. Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b45ee8ac386d9e181f12bb51387a6d35030972f2e70cf6c5522f7bdf0f94ba8. 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/DEU770800013.
Raindrops (Encore une fois Pt. II) - Kindervater Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187a23afef9698d732a8b4ee71ea51ae9b82ffee3be25ca1db6402c9f15a2c23. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEU770800029.
Raindrops (Encore une fois Pt. II) - Kindervater Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1b12314b58ab4acb9f50a3fc7b758061e4995e898a9e4b25e94e8fa9e8c122. 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/DEU770800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35d86c0b63e714298905420e8bb760de4c6c1049e251e2941b255f51dd102d8. 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/DEN061401484.
Mysterious Times - Kindervater vs. Jens O. Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae85a4ca22c167cf7418192809180a7e89e3bec1392d6293b41dd8b7f01b4f4. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEU770800014.