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 0x40f8dd2f53c8f4b772d3f9dbe7a1248749634fc993b24d3e68220454dde5bb35. 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/6de4cdf7-efb4-417d-83cf-30ee6fb013d7.json and https://artists.proofprofile.net/proofs/artist/6de4cdf7-efb4-417d-83cf-30ee6fb013d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Popular Instrumental Songs for Your Wedding Day (2022)
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 0x4c9395ebdf428aaa57328bf81a8dde941d34c890db5be8f21e7eae24db7a8b88. 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/QM6P42216119.
I Still Haven't Found What I'm Looking For
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0464d61e30e1dfa0c7fb56ca060dab0e4fabf796dc98b3f26324042570ee7e1. 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/QM6P42216120.
Beautiful Day to Remember - Instrumental Music for Your Wedding Day, 2017 Ed.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5072cb4d6f2dbaa7113da43a20b27cc1b09fde175e35039c1dfebca610cc0f0d. 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/USFKP0601192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3a8b7c98528294a3a78945bbdd8e9be58926374fd2d89860b6d75bcb65e101. 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/USFKP0601193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf139cd28f22bd02608258ad2bb442488423e384360263eec547a35e9fa5c2d83. 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/USFKP0601194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0eeca6c65cbb638d6034f0a584b0e5715df9c7623df306ac7a7e0c5603dd036. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USFKP0601195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b71da4a3b16d2c43a3592542b24329c721f15baf349e0c16b877752ad0857b. 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/USFKP0601196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6b920217e21b8045e0b32cdfe51d62d5e46a68dd0b754de26ae2f3649e8c5b. 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/USFKP0601198.
Beautiful Day to Remember - Popular Instrumental Music Songs for Your Wedding Day, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4597ef95bfb1885a273d6a946559e5e40df5250644f4e1072e3409be1faba9b9. 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/USFKP0601022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb178f3b36d7ad02a3ca209a683ff9aca041c7c164b9e1560810f9bce66f49977. 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/USFKP0601023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d75e8112e98ba2efe44b1718177b2a01989bd32c9071fba2b36db89c947311e. 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/USFKP0601024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1e2a9a415396a6215bf911db07d3466e46193196605d5b2ede374a37f39c41. 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/USFKP0601025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce776fff0a8abcf1b40e761048c7720b71bc9cc0339b8bfcb29f0bc2184695e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USFKP0601026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed23f848f1f1fa1f8cb2220a386ea3145ccbe9edba285c89c1f982f54bd4a98. 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/USFKP0601027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5198e4bd467378717ad5b98d7a502afb1b63df5d01ee4d8952982295d97fbfa7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USFKP0601029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0edd0353dc67f89638425fbbe997fa3f354a9543ae48af6b0d7d1f8fd6ea93dd. 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/USFKP0601030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18d63e9f96ba3086028262a76d6ffac55e24a873801b5b9dd58609e070038fd. 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/USFKP0601031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2f82866100b72153d4fef9234addcd3b59bc33e6f09514dacd20f8d6746329. 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/USFKP0601033.
Beautiful Day to Remember - Popular Instrumental Music Songs for Your Wedding Day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f38ee24ac15d5f95288068c72e74dd4e3ec55553287c6c78e8883799b7a07b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USFKP0600776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2c1dbb9e33a27c905de60c5635d7fda7892d26d06607391350b9375c3a56ac. 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/USFKP0600777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bef7e61e9918574f3b71bc887fda939ec7ca39a91db838c036912e5e79da7f. 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/USFKP0600778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a41b17ffd696594b7f15a2bba6c8b153f8820766e678e80c1f010e1c339a228. 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/USFKP0600779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89617bc1eb7eaf4fe785e6ccb713c74b5f458a14c094f4cfcf07c7bbbff6c1a6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USFKP0600781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945c423d50b6561eaefbb05e13629f51189ed55862e63e2be6dd287a9a021099. 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/USFKP0600783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb958c7dbdac3d4eda204b7816c593445eed3b486680dba341c272bce4789fbbe. 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/USFKP0600914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafd745aac71d4b12c35e16f322d534111960680003e8dcaf5eead67815b1316. 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/USFKP0600917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d11d488e2c88b6b2f199a7d807329ee24061af4b47faccfdebda2be81e06621. 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/USFKP0600919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4fe64b1c6cb4d736d56decf58066345df510cfbed993968e1e0a14cb2a2af3. 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/USFKP0600921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d18d5e7ccd6576c56c99530ba99edc792f528b4c34c0ea2f6a59900a869104. 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/USFKP0600922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ae3a6e73fd3a570ff7187bac8c94b8b62877c29f378af5f741aed7df5a1ef9. 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/USFKP0600923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef490ad155675c97d0a9f7c8956f7f9b528bb57e47118850a617c89689749a6. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:04:27Z), 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/USFKP0600948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe58547778f458bb002f0564231eacbb43a9995155ddbfa8bc8ec63a82d1834. 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/USFKP0600341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574534fba379a9d2e82904710a9afe4a1700e33a9db739e12a92973df2ecccc5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USFKP0600812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4723055d4ff708fe45a6186a2bccd53bf198e8d7665f805d64f29af819d27f1d. 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/USFKP0600701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e4b6e31ad41491f9327c41a4bc5a03e523175d7a068a97c9c06cf1e623d095. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:58:48Z), 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/USFKP0600707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8373c80536b76941166b430e5acd432aa4f1d244187a9d9ba128db48376b1137. 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/USFKP0600416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb244ed1720115d36b44f7f09a175e45fc3adf8eabda9786e85753f1b88033aee. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USFKP0600912.
Popular Instrumental Songs for Your Wedding Day