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 0x2a3a753b5742890d9dff570c6904d892597512fa76ccf976ed855b46158a7262. 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/136a6c89-f15f-4e3f-bc1e-be40876165a9.json and https://artists.proofprofile.net/proofs/artist/136a6c89-f15f-4e3f-bc1e-be40876165a9.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 0xa1f7ebc8da926368b060423adc9d1bb3568c8590b183bf6b11e62d310a693930. 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/TCABA1126303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305350a14242e0fa1c73373b78247922f0ee48e840e5e7e2dd58e8522c3f3984. 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/TCABA1126316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751466aa4ce635baef574e04daa7bf21b68ae3231fc2f8112d78507637a55cc8. 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/TCABA1126314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914f01fb68012b4eb682f720af5150bd1e3858f7bb3ee0e980fdcec1041ded7c. 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/TCABA1126329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44c4b836b20652ef571715f89ab814e9fd21d795cb1ec953acda1ad5520bc50. 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/TCABA1126319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17fb89498710d6d81071b981948aeb2e9b0fdc797d5685615f18aa91d43c7e5. 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/TCABA1126311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9fb27fe4831304aff34195e0f38568de15f84e3279d729e4e3d18cc0da98ba. 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/TCABA1126323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1276999b54c2047427d0051f4a2142e12fe9f8c7fc82df3508a784cc6138510e. 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/TCABA1126309.
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 0x849fa5b4da09a68ce80bdc04208834da4bf72c16ef93da47dfce0dc9f3a0f9b5. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/TCABA1126326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c4c4aa89298a4f94fabebe33b03ee8afbd6ed16bbecf28486fb8811cf76263. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/TCABA1126331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6e742c96b147db05190321f2224275183fc1a10bd2f3a8075d108f4eafc64b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCABA1126332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7cf657408675492b737b604daf95ecdfe356a7fd6c92d0bd601c8c9859e6f0. 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/TCAIM2401173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7a4725e77cc99bc02b984b93c58132bb69a9a3afea0c3a507c5faa6811c17e. 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/TCAIM2401193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f24e1786edd440827086c844719adf836e8d5061e1e5f9383ac1431b62768d. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/TCAIM2401154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1d16a50dcc62f77c6b640e9bf2349536385021e05efe4bb1a6d883010f899c. 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/QZ22B1786298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e180a1b64608f5b29f6bb95b4750483349dbf0e0a61bda46d508ac964c9f03. 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/TCACY1757833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3055deb92015b3a0da74ea78e2c4767f6f0493fa0f1995ecc5eda28d4e3099a3. 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/QZ22B1637177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e21958d91b175d71007404b7b5dae9d35ff31f41685d50ab61a5735a9791f6. 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/TCACT1662506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c46aff763c8a31134a3cbc3c03629cf7e59ba5c8995e6385d84392b1569b165. 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/TCACR1688240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26374e186c988fe87db5dd428943fafed3a91d714e1e39ef23ce0dbb1c1696d. 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/TCACR1631025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8055fb23787ec65cc7d35b1237b43f83a145b67fe907bee1c3c21a927f6ab199. 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/TCACP1609983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2890373c52b5ef3e0e58ec5bad8b23ef69cf064818e62958e36861b5f3aa1c19. 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/TCACN1622968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d2144551a3f823f73195e9d78bf364eb28136f2b2b2e461cf72adb1767135e. 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/TCACL1634723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1507b644f6940ea9de7d1630d9e4e3055710dca47cbc885483720c64843ea1. 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/TCACK1562875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c6347f72790d11e38093d6382d24ce7b41b32dcb3d282b3ed87fdb2fd06994. 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/TCACJ1563283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05560d9aee4773fe2bc63741d9e03405304f710bdf272396c210e6d6be181462. 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/TCACI1572437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf849959a7e26cab2ed2b5ea3de61dc624935c6ee8439ccc36dafe2518f0991ae. 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/TCACH1554483.
Rudolph, the Red Nosed Reindeer (Punk Rock Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590006c171d460a277b67df1a7cfd496d1c4fb1cf2d2e50c9c4f9dee93f3ce78. 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/TCACC1411938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6f37b3ca307b8ee244671c527647db94f9e65c2900bfbd482556fc7964fec6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCABP1312649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a4dad63b5e732b1a4eb4409a590562d7d07afbbd9cca66621a03336edfa29b. 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/TCABB1162494.
Santa Claus Is Coming To Town (Rock Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43eb61ee5ea25ec576c8a33a8e32692974a3ce378a9ace17d50bfbb9dc2801e. 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/TCABB1162496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9686fa15fa89d4c8e3a11965fe784679a9c6a4310f7f8320fe0f274665d2bfd9. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:03:05Z), 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/TCABB1162491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa692e1c62816b793aad9aa6ecec37e8840102c48568197e0cae4e927ea7e311c. 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/TCAAU1197258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392d82f221048fb5ea215d9d186da1536d7069a95f9d4fac53a6b5754c1743a5. 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/TCAAU1197259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e28476a396e787b76c9e11593c186a4699f2e48ad269817492c73ab11df6da. 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/TCAAU1197263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357971f31efe9cb3fd46f0eae2d47346a265ad3953f6c5112865313a9fc6268c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TCAAU1197257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0b559523b4b46835887ee9f1785027c2f5f402e366f0ab835e355059926041. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/QZ22B1740688.
Tout Ce Que T'es Pour Moi (feat. Amasic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d671095fd09e4b87b82bb9ffd2f97a204505b102e0044baa3a8c64d2fdec4f. 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/TCABG1270251.