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 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 0xd0dbcf148d015fd9cc0284f6758aee0119a9c8279feaf038fdd4624457225832. 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/e8289a66-0e1e-4d51-b2eb-139cf76d495e.json and https://artists.proofprofile.net/proofs/artist/e8289a66-0e1e-4d51-b2eb-139cf76d495e.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 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 0x252ecd6b88b73e78e8ca8cee0ce494822d7cf2042270ec85c15aa0e0edc28d59. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/GBFFF0200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3a3cc73531efa0758e5a813a641bf67919e2902637d7613a8694a08f8ce846. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/GBFFF0300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c923ac4c4fbb79533928440a4cb80423dba7944c862447c697b0becab645b2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBFFF0300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2dd6bda9d24ce64d62dbb5524a7158ae14513a48532e39059699d82b242d8a2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBFFF0400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4addcea0f82f452406d397aa89e5f4b5da7b3df2b0e01a0dad853a893654f703. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/GBFFF0400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d1cf4a32fcf51fffe0e1d39a7053f2cab3d41011b5b310b0478bf1041bc675. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GBFFF0400083.
Talama Ashku Gharami - Expression To See Muhammad (SAW)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dc4eca95ef699ca2a39f5e2345874d7c435b2fc654e3c397070945eaa4234f. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/GBFFF0400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fbe4bfe77c764e8f62853b414f26a40423facc4c5efb3a0ab87dcbfc553990. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/GBFFF0400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1466b640259eccb5e2cb3c6c57e19ea963dd9b3e1fdee4d0b2fc9ff72a42f868. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/GBFFF0400099.
Salawat Ibrahimia - Salutations Upon Abraham
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472d18b7c91b0e3b7348ac7afce6ea72ad8470797455e95ce4e3d0ff2fb66941. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/GBFFF0400101.
A Prayer of Hope (feat. Lab Pe Aati Hai Dua) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b369b579e1ea6becefe0a5ca09367961cf1668df178f8335c732958c04bcc75. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM81824194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e8eed4b7a7322911ef9b25cc762e86bb8c3ca94fb76b11acf2be26397a8a33. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/INS182301161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1c18e14b1145092fc45af1650363d8b969ced509e6a629b12c4c32da91ce0b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/INS182301162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7369082c3a016b58281e94ed6fb39790931cf99ac4a1f8a74556767e27a1c4b5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/INS182301163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a9bd19d24638011310c0048c6f89df8fc6cdf3791b39657d2bbe4061d4e290. 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/INS182301164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d3dc8407d75b910d3e8ccc97f0768ea825bbfa3a2d8276c5c5aebc657f2b92. 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/INS182301165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a991030ed03e53f75e87a070bbc66166c576c77cccb5c7c8b2868e627e28bc. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/INS182301166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfc4157ab2cb550fba7cfca9d13c80bc940251b0943b4f3cbae5b166b7ec555. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/INS182301169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202ebc80c1aa8067e2dfc9abeadf05152abb10124362707d60aa971477cd7a49. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/INS182301145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b98b162814d7393bd54750295f749701ba5661d641417ca846e9b2050947595. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/INS182301147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf92a9eccc40084f70b130ff5f8aaab381ac811c49a79b5a185b9a383d4f854. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/INS182301148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a33a9f4c790e2068bf05848039d59d6fbd3ba39069a19c4b3ffc12c4eed0a8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/INS182301149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d11533a962d259b857255ae51aa292e39a2537bd10e5ef437528b90f2d7d551. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/INS182301150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c24e3e6fd47fda14edd5225614524bd83df38d07aabb0639f2f5b64bc5345d8. 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/INS182301153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5f4870726ba8523beeabc0b49a3ab2e745b3d88f75ee7f66612be4c85f852f. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/INS182301154.