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 0x719bfc160c022f91aa5711a23047b9a0f22d7e2dcc62d01195f99e146871b589. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28c11ee5-b9e3-4dec-b3e9-0d3de952bb8e.json and https://artists.proofprofile.net/proofs/artist/28c11ee5-b9e3-4dec-b3e9-0d3de952bb8e.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 0xbbed073a0b5a4b163df102ff47be042691ee4b621e914a3035469e6722151ea2. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/IEBHE1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7539c1dd0b11d2990fb6db1324b6d5c374f2d3bb469cd22c7326e3bb38f34c64. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/IEBHE1700007.
Have You Built Yourself Well / Proud - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ef8ff5f8a431388721a6643cc55411292d2b4110b4f3f2d36b091af98756fd. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/IEBHE2000003.
Believe (If You Feel) - Spotify Exclusive
I Gave My Word (Shadow Of My Northern Star)
Crimson Coloured Wishes (Remember When We Didn't Kiss)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8b367da41153735c1bec4e4bf78742baee02d0f8d62a6728872fcce5a10d59. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/IEBHE2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f68a928313620b570cb5a54cd3251a08f7285d96e387513add1076f326f05c3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/IEBHE2300005.
You'll Find Me (There's Gold There Somewhere)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb431cf0cf0be20cab20a7cca364aa479093172c1f08f692764c8fc83344b7834. 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/IEBHE2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f31ce0ba0f46b36031877204b33c629cfd8b7baffb7b3cdea386c016efb5f67. 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/IEBHE2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfe270ab4e3de70325e7eec4fceac799765e9fe050044f57087f9dc1b8e2050. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/IEBHE2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3710ec1b947886e9a0981585e191251869c8af8ea999d5e56591063e48d03d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/IEBHE2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef26f91564838c1709f1db359717704012cfa01082c0a5023fccbb400a0e48b6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/IEBHE2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b757b71edd01722493c7078f5c58c85ee390b144d3762416faf895d2bd662b9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/IEBHE2400011.
Tell Me How (A Perfect Mistress for a King)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fdbcc899996a60571643f62619f0699db56fddc4a244aedbf51c54e00f9010. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:51:39Z), 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/IEBHE2400007.
Don't Go Starting You Won't Stop (Counting the Raindrops)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d50218c75a1b7bba6327ff31b8ebd8d10debbf1a29c758424c5c65938b74678. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IEBHE2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938f84a9a811b2f1768e891ab81586d4500f79ded547c1c97b364c1400a8f9a1. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-17T04:48:53Z), 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/IEBHE2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef9b70253e486df91fb5160eaadd97cccb48fc5e199a07609ec45fedf8668ee. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IEBHE2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda567b03616b1de62ce4c2ddac1927c50c1ff6f19c0346fce18f2e11ff4d1b5. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:41:45Z), 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/IEBHE2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63c1ffc080af7a1c384f39c57c0d1e08ce5f32c77966cf7e423c57f97108e8c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:04:03Z), 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/IEBHE2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6c59bd37fb7be6d22542c275dd7f8bae8fcaa28bc768f88d9e74d7092b37c2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/IEBHE2500008.