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 0xe2368d2ce0a6882ed2248a904ed5e64a397e9c729f442a3a88b33d924ffc4c54. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c4dbae1-f851-42c0-99df-31cbf87b006f.json and https://artists.proofprofile.net/proofs/artist/5c4dbae1-f851-42c0-99df-31cbf87b006f.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 0xb5dee76f3dac7d68d1f6da9a1c594c41185012344f5bae3dbbfa465da58aaf0f. 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/USDHM1909028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3060d3be86ea2d11b820664e9d3a843cd2ea15cc213703b7aaf051a1d012ad. 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/USDHM1909029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc241c3fa4ad540f7a2f27fe790a53adeb44f6264b110cf5921bfabf2ceef5e2e. 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/USDHM1909030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4d48bbbe1b56389323caa00346805a34eb8ea90bcab6d350e90bc97b9f3484. 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/USDHM1909032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd807a5558c74625170df1487b984cdc653e080fb7cd3adc1429c396e13b518e7. 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/USDHM1909035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1294d64bf5d1ce17ae89a78e1f0fc73adb04325da307a6ca89459bfb620a539. 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/USDHM1909036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2de022a1366d4b06c81083eda7c1b087e20fae704d9c7cfa368ffd0cc3207e. 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/USDHM1909038.
I've Decided to Follow Jesus / Just as I Am
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb0abdd07b299b9f2db3c6e98c7debd436b57f78e735d6b6e51117f19c46147. 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/USDHM1909039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f44f2aa62e01a73ce3cfc229b66a96c37c6aa5559e88b67621e52d27019886. 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/USDHM1909031.
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 0xe97248a0dcdaf83a2173f1c6204a391689722b2198e1812c7f9c064e8dc5ef10. 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/USDHM1909033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037789391221967678d3e82b166cda8fa1a5a3d1b38bccf3cee8c02e45e8fc17. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USDHM1909034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db2f604ac935a1696b70975c8204b93ca89abc8f37fcdda4fcffa72a561afbc. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/USDHM1909037.
Lee Brothers Play "Heaven Came Down" on Steel Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0cd7395e6c4fa5ad2a145afd121cb8377e69a49673caccd90ad17024ca6c5a. 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/USASN1300292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98bcbd627ddbbba2efe6a9568ad1972d36b04558fb7ebd2e290ff84245c3da9. 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/USASN1300293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c5d810f4bbda1df79bd3c1e372e4c4f119d65d1220f5ae7a59654c6400808c. 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/USASN1300294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26de4af03d904ab6dc3132765f8ad0e88317a90753cc89a9f56cddeb47fc75ec. 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/USASN1300295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526a44502536a19951e0415495d4fc25d7185bf8d0ad753639b25d116f2efadc. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/USASN1300297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511d6569cf03daaffea8488dffa2c0a253cfb2943fccfde12b9a009d971f35a2. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USASN1300298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47fc0d61b544c9dc64160195655ba2d4229da7288d8b17ef1fdf9ea8128760e. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/USASN1300299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6181ab6e8b8012c6445e932dea63759e0f1a6e877c04a83c72754183c21e127. 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/USASN1300300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870311d5784fe06849c441ae48550c16469a9f1f758aa63c3cf30916b364a7e9. 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/USASN1300577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9cb5c3dc94584ed5341775ee7ad4ec7558b1b6682127328312ab2e81ef18c9. 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/USASN1300581.
There's an Old Spinning Wheel in the Parlor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd84e19fa5f5003726e7ecd6d6e135dc9865c22b49493b67945412347ef54f56. 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/USASN1300584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625e2cded4cda82a1e5eb4932de323b978dfbaa86259ee34dc52fe11885e99c4. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/USASN1300578.
The Fishin' Hole (Andy Griffith Show Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9617973681402e634724d5e15045efa1102a3b2691193171d05aca3f0d5038. 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/USASN1300580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf289bb71fa7cdb447465f4093fdbaaf34248cec8b4ec461d0763e91bef7b2a75. 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/USASN1300582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1747a7d3e287ce4ba5d565e8339ef92b3619b7d47b50e265905975779edd6dd8. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/USASN1300583.