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 0x7f42b4f8920ecad5145c6a326736b1b4272c82cc1b9d4628c9516db2c30389ee. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/368109af-b7f5-4d78-a877-9993cc40556e.json and https://artists.proofprofile.net/proofs/artist/368109af-b7f5-4d78-a877-9993cc40556e.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 0x95ebe929049f14cc4148eac84de2719ef7436443abfabf2c7534e4ecb4b5852a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM12207085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f36d1d814167715386c7781e5b39ead168abfa0fe20bedb8d2506eb07a3888. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USSM12001294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a68137cfbeafd7c56fc42c7573e912a376a1a948b7016691b68917367b9e0a9. 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/TCAHQ2354760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8704221105329c43196542855a681be278f1f264d8c2bf9bbb760c5eac72373. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAHQ2354981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e2e5cd254b416478f10ca552b249d88f0b3fa0b3fc0afbc567487a1ceb19e6. 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/QZTB62371126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41464faa56c1f4ff4830d7e45c6c99f53fbe58e7a32a73c8af07f2c48e0a2315. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM12303858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632c314783041f0f0c183dbc06963c3d9bc0bee5e520992f5624b127ccfa1157. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZDA52272852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e10cf8208e4a66c5efe085ad272b4168916b7cd3419f3dd8380966f4108ade. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZMEQ2115005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e1a5fe5ae18df601f466805ec4aa62d59e30fd2ba54aa2d1ddb555ab2781de. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM12102011.
Forgot About the Streets (feat. Melvoni, Badda TD & Brillo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4a2a7d45c6558f889c141a38fcfc05a3f67610cb624d5e0161433f031e88c2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZES72114343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4ebadefa4f4e10806bf066beaec876c35478eb7267ebb507d5f685d4905c46. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM12005220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d95ab0f2b5487cf10436d670dd3bdc60fc2a3bb20ec1d5a059969aaf5e5f1d. 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/USSM12005084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0eecd7fc1608eb79530c315c492363b706a392d4bd5306db6dbab661490625c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM12004883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bf8a477a62b98e5d1dfe751626e923e29f9be41d750e921e796121b291ec89. 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/USSM12004367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340a4a1efe4232d3e5e0692fc50e1efb5ca992a4a6ad16d33ca6dcabccb9dd49. 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/QZHN52085576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8b7941cfd4937895918d192c2779f58a5807265411b299fdd8c0448dc5f31a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM12001295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac25ebf243b38edb083cf0c86d875dd46e90a79aafee2f469aed12dd3bf6217. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM12001296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1e63a242c8ddf98a47ff3286ab05ba3b7550d96337cb1f33e3920ba9fef9d7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USSM12001292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9458a0a972b76cf304cd1dc5892d19a029f33721c10db3438612a9fb8c4e0ee. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM12001293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fca9794f47b60a64962f2b9dc6ae0f3acc8e27702eb12821a64363d88a79c5d. 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/QZHN61979090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2f9953ebd48c3e7579f9fb6d55d424398c17b81a2e340de57ab4d29febef6e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZFZ41924191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bd2af35c9ba0e9a7bae1de6c4f2d758b6fe259ca399c652f50ca315e0ca93d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAIF2404637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d44e4d712d65843015cbbc507a50f8a2d6eac73fdf80dbb5b0688fed64686bb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUM72015509.