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 0x68d74da60bf52ae41f0e356988ad3c9f731c9fb8cb801ff5106932a491bff6da. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ad57130-1d10-4dfc-add3-5e80818bdad2.json and https://artists.proofprofile.net/proofs/artist/9ad57130-1d10-4dfc-add3-5e80818bdad2.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 0x157fa6ce97a2f51c93e55c62a752a24dbf563a2b603ed9f9e7ae26cad91efb42. 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/QZFZ42586425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1580125ca5dd655646580aab97e0083771a42505c5e3d79c28b205cdf5ea875f. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZES52587406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50a777b28c540a7c87b16f4e392d8e4e86fa98c8996d854943922e686ec6763. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZHN52598806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ca3309f2dc72794229e242b2641ac5256b12a6cf67bb9ae8f065d998c35094. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZK6H2581241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6b0fc61bd555eacbd6e41b773dd674608b04541e192381ea414a9db25ccee8. 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/QZWFL2555598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153aa3ba4c263741fcc9ea8cd27adb34f94ba60908ebd6230fbd7be9d65d94f3. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZWFL2555599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876d183286147bfe4ce1b2dde1dcac26eef04db3006b2bd10d5dce8c467dca85. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZWFL2555601.
Book of Mormon Stories x Follow The Prophet x Latter-day Prophets - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8992d08434cd0e16f60f750efb01e5944a525a0d695b0e1f16f85f10db7b88c2. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZWFL2555602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9007f416c433f7b2c4411729ade26829a9fa1a7c3ade11ddefa73d4d8cd18180. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZWFL2555604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc58bd11731045718c9dcb6e619b7963a0f2d5aee15c746d0e1b6aba86a6c7c. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/QZWFL2555605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d3ac6bcfa41edf8b0a57724b73e46720ec90cb539cc596f69a25deee24278e. 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/QZWFL2555607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ffc07b5a4ac1a3bd94dfc8577feaa9ec13fda921b758560b7ff290c2d44991. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QZNWU2550745.
We'll Bring The World His Truth (Army of Helaman) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabff2ea930146b50031cae3eb72a6f30ad1fb4baff348a3d5616de84d9c6ec96. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZWFL2555609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c5ff97efd712ddfbb4f2cb04f2d8f59af5595b0950246008f1328b98112076. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZWFQ2545428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd651a7c50d7b5fbc19d01ef5cf9a9a1bfd51f68823936eb682396e39e5b7ee59. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/QZZ7S2581491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f9cea57286f5d72f91f302cf49c3a1d8e9f7f7aabcfc93e0e06f7fb67be54f. 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/QT3EZ2502862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ef1a8b6f17d39f8839c6c42ae96b6d11c3cc68411387be97a66023d6aac965. 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/QZHN52455459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1da1149ead43704e44808cc050fcb772b311fa3c80bdfc54e303f3985f0995d. 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/USHM82044509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433ec445e2cc97b2a22eb448fece6ac09bdef9d84de1e18bb65d1200a41f9397. 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/QZWFP2391637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5a3f1f93f790096e2ef3add166026ac3fe9f21812cca89505e3a590dfe37b2. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/USHM82095222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1d27dec8c8ce2906b34192b9a6868fbfb0b7aa6c0aa813db8e77e66fc90abe. 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/USHM92045224.