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 0x8b4ab08ee7008a29e0bea390e769bcb605fd65e081320e92d9a88e3b76591033. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82c1cde2-bfe9-4315-b544-ad1ccc05c16a.json and https://artists.proofprofile.net/proofs/artist/82c1cde2-bfe9-4315-b544-ad1ccc05c16a.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 0xe05fb158ba5fd3a0e2d3b878920221111bc0d5222b769db214a851c87a82dd2c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZDA62299028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a560b00faf30cf13f3b03ac8ad2ed6a3118feb9a4c34a5d19d44b54d99c424d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZDA62299030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69684f8db69be49a6ed6fef6848ce11a031762d7845b0708eab827f8b4ccb18. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZDA62299037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccdd26a0182b4df5d24cf22a5d73d128c4f088b751f3852787783f267aaa27d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZES92372520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843c9082fd192879a1bb55500812b4d6311ab80568e6313c610f8359865f3181. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZES92372524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06342b5211b910356681984378c2d5b0dd337d1717d8b2f5f2b3ea34fcd600a9. 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/QZES92372525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee637bb5c59586a6ab0418f6edb80c5d5ebe496cc38cabcdccee5eebd91fca32. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZES92372526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9380a1b8dfad23e7e0b846e303a97daa6533afec9c6f9784c6daa6ed7683ba4d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZES92372527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b9673c04170ed15877d9a965c49b0c6cfdec795cace376b6132fc8ea034bf6. 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/QZNWY2464360.
Song for my Brother from Crash Landing on You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3fe49ed6d43416d537b33f2509eebd8d4c6055c9ec5fe68fc5389df4c6dc03. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNWY2464361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02df98ffa0727422b068a265435a2acbaaf3326a146d4be448a8182ceea84bc. 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/QZNWY2464363.
The Shire from The Lord of the Rings: Fellowship of the Ring
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a808e20126ea661a8bef9e2157b4f3f28a93ea586e5a9574a35e43526e8909. 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/QZNWY2464364.
Where Everybody Knows Your Name from Cheers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28e010d11681827e1f4d75851569802560b583541c3c957976defc34cfdd44a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNWY2464368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19f1ad87ed2810457b2ed9c904e98ee142004187475524422e4f4b58e5f2980. 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/QZNWY2464369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ac4b735bbf96d059cd3ac08a20d35b4e4ea88b6c4db31019af4e5dd4dc9661. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZK6N2525795.
Great is Thy Faithfulness / Blessed Assurance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c521356323fdc59bd76fb5c0055eae554158b16db71abaaf48c74d0888b3b92. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:04:04Z), 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/QZK6N2525796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2a34c905f8b7aa48f21969f48afb72b1744df4d426e6af4d8883998c496909. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZK6N2525797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9774a6f3617b1a4e3a45e2c91dd6b14a2771291612c04f1e16d02c90dcf05c. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZK6N2525798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf222b006e39b6e7917d19cd645e6a27a14617dcb007b91e171db5028640ba8ab. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6N2525799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f688fb5f857da41dd6ca360944002fd0c507872010035db0f78e858317fdb29. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZK6N2525800.
Does Jesus Care? / God will take Care of you
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7ab1e0e667bf8ed78eb3b89b5c7e2bc3e54d825c3fe695df78cd621e33f737. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6N2525801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6918407a5e8813868b2eb7ba22b2f49b9407c343a152d972b28b9a4ebe691465. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:01:47Z), 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/QZK6N2525802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc6f37b3ced0dcfe43255bdc7e5b2b32162a6132fbaa43b82cddeecd6a9d972. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:08:15Z), 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/QZK6N2525803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6659347dc9950ebee0b8bf509072e8661c6d1eec666d5419ba801bc6b4d3e83. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6N2525804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d6dd7528219d269e89394f48111f8b73d5e2186dd3bfc7331e7db52847efc9. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T05:02:05Z), 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/QZK6N2525805.