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 0x7eae5fb59c97242d33e986b053b2980904adf5c551076504cd8fd15be574baef. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68f2342d-818b-4f98-a8a8-66a526f7d671.json and https://artists.proofprofile.net/proofs/artist/68f2342d-818b-4f98-a8a8-66a526f7d671.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 0x56d57ebb40c9575fe7e03bff7cb22bec49fd65a701726753432b31db7186e33d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:50:34Z), 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/ITB842000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a62f6eff99d1f64c392e90b219834c28a9f8d8faa6f51be80432dca842fcaa2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITBGD2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567907363022a3fd76c5c9c204ce49ff16b4f4fdb9d5b00a0945c482b30da6e4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITS252000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f797a0f90466cf92707fba6f86787c55e4dcad5e3e1c7f07193a3493dca6b0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBLV62028297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5385a729e56a5afa2a46f5255dad1e1c188bcd67ae3210bd72aff6c93b9d3573. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBLV62028298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08c83c7bc02b4ec4cfbea533f6da7730d50592a69e352af12f0d1e8397301e6. 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/GBLV62028299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07423dcdab0780dfb515b3474d350322b8797e6f45badbd7dd872ae71ef7fa68. 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/FRX282182180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b1363cb926d30738d34ce3de44c3d8f616e8e7ac827d1be58a6e3680025568. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/DEY472275983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9d68d3c7a858f8e6cfc1ff6348b269f94ede482876f81c179ad16aca599ffe. 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/UKACT2330119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecea192fb202e998b219e32306625d3f9a046daa9d659d5669aeced91fa6f8f. 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/DEH742312521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41777a66fe5ccc0820f8b3712cb64cb3eaffd48d13d4aa7c66403579ecfa1d27. 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/DEXO22307008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a103fba34ae51c07373c7e158b9ad8d84c2ea216b58ffc3a519ca517b383a7c. 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/QM6P42423302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333288fce23a2a72e95432d6cafc13ceb4ad9defe539aba4ef0cda8bbf5bd3b5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM6N22552897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172fcf56b7840e7ff22b1ab9406389381542372879ec46ddaaf5e679b9a0a58f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/GBUR62001103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6419d531aa0727de64e2511bb1f822c4b710f06b585871df08f74a83b7329dea. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:39:22Z), 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/QZZ8A2556693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbbdad5d1f4063754bc4703006ced8e0602a040b2177b10005aba22a0ae607d. 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/USA2P2414084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3e8b92c68b71774b5fc4625fdee09d96847537c49c471685126944917e75a6. 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/GBUR62000872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3e8b92c68b71774b5fc4625fdee09d96847537c49c471685126944917e75a6. 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/GBUR62000872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c456ecaf9aaa7fb208f795a2f1f3f608e51842c19673e5081f33131a5cde42a. 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/GBKQU2342120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5efe19ccfed61de7831c3cea0b28a948724b172f5993eb8a92ae63f65147cc5. 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/GBUR62000964.
In Bed With Ballroom III (Mixed by Dr.Motte) [DJ Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897beb5dde06828a2053ccd4fe126a406d36a9d5b2c19e57ca185b56f83da748. 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/US83Z2021311.
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 0x0b5dc8e214067b51db55324b76206c65259789444dbebb0be3bc6fff79bdb561. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US83Z2021312.