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 0xd1c31801e1c768c4b6a1cbdcddff67285fb85732a35198753d81d9d6e45d97d9. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee87ae35-5621-47a6-8baf-141a1863d2de.json and https://artists.proofprofile.net/proofs/artist/ee87ae35-5621-47a6-8baf-141a1863d2de.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 0x6585e82d07a3e8f143e9200b139c7510928f6a50dad874212f918892cfcd4347. 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/GBEQT2300266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cd0e5dfd5d7e80974e0dc2baf76e1b1b80c96c1f99f930fb13c3baf613c3d8. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBEQT2300267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6fae5028a68f8a94172b9ae60aab86423622a8cb9ef022ea3f9792420d60a2. 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/GBEQT2300268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fa4f98789327ed0f585f51b78c290677a5d0d8eb3acb2b34d191b00b5c3d72. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBEQT2300269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3743c22156ef816686753e4ef49a686ebcdf18e0df25a8009c7c63362c305894. 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/GBEQT2300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bf7b0776143886b24e90e99b91942a1fac0874b89f6e44d821b1fee76d9b79. 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/GBEQT2300271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2456092187b2a839aa677cbbb0a89bbdffb3ca441cc1ab01c2ec402983d78063. 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/GBEQT2100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea37f116e7b6dbbe0479f1f12057937cad9ec729f4f5b2adf7ae45afebbc7641. 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/GBEQT2100322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfea14d61a6671376a803bb7d4a7cc24ee04b472720f3940825d0afe74068a7. 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/GBEQT2100323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae21cacc4a30ee59855d34ccf865d851e8f9edd1295f8485029dd0bc3d3cd128. 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/GBEQT2100324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34612d1142d31b9ef337d9a3e7f92ac30ae92844b57d00e2ed1b68591ff4542b. 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/GBEQT2100326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dc86e102485a389a9d3c221e777bf0ce365db2148b88bb800784398f4310ce. 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/GBEQT2100327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96473799ba8d7a48a5bdea5bc6a1b2fb01b49f2f9f6a6ce1dbfb10d2cf56fbf4. 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/GBEQT2100330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326d57ff884f9266befb2ec54172d2a8ac50e6081dcbdfcd6e149e2b5f6736d5. 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/GBEQT2100331.
Afro Blue / Paris Sur Le Toit DJ Spinna Remix & Sly Johnson's Tagi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96473799ba8d7a48a5bdea5bc6a1b2fb01b49f2f9f6a6ce1dbfb10d2cf56fbf4. 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/GBEQT2100330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae21cacc4a30ee59855d34ccf865d851e8f9edd1295f8485029dd0bc3d3cd128. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/GBEQT2100324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dc86e102485a389a9d3c221e777bf0ce365db2148b88bb800784398f4310ce. 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/GBEQT2100327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805724fa3c1e8fc4db1947b48e5d9982e74cb0543bfece3edecd47c2ae11191c. 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/UK9KB1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13eaf0375dfa8f2d36876fa46e795815f1329c35c7151da5be09b0e48da978a9. 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/UK9KB1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8a50dd1bd0962896c6b62463d9bd90b97d2ac2ae21a44fbb05c1c89619c1b9. 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/UK9KB1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41e16254d9361b0d25e536e65951a43130a85b8f72fee3f8bd10c814d81390a. 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/UK9KB1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58e345c8557a15c81b5b5ff9cf97a0a7d4c2de2813f8c3faac9575691598806. 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/UK9KB1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983e0a2703413da907ed4e1729caae1de326bbed1335185ed8da242f25099ffb. 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/UK9KB1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3743c22156ef816686753e4ef49a686ebcdf18e0df25a8009c7c63362c305894. 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/GBEQT2300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd89761d16cdbb36828a4b35df9856f83ddc55d9bcd66a4a6c4694aa95ce4d77. 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/GBEQT2200384.
Annoying Semitones (Diamondz Remix) [Remastered 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2456092187b2a839aa677cbbb0a89bbdffb3ca441cc1ab01c2ec402983d78063. 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/GBEQT2100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583006c3634ed1e78bbc3bbaec6262d4c615808b703c22d77289abdedc5476d1. 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/UK9AV2301563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b72ea21a0ac44ecb8b7bab2092b1bb7fd9880c11671aa6a2925c26985ed2383. 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/UK9AV2301569.