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 0x7fe362f7d60c640236cb7200badc35211022a7ee5c17dc95a07205c5ec803676. 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/2cd5c06a-7732-40be-abba-b793dfeb0687.json and https://artists.proofprofile.net/proofs/artist/2cd5c06a-7732-40be-abba-b793dfeb0687.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 0xae3e9460ea3dcf4783aea4aae2c99f900a312de28d2bc9176e78a3b84d668aa2. 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/GBBKS1700382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3d34a64dbf424d568a98156f3790d98f72aff9c9df2122b9f0c6afa7dc0a7c. 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/GBBKS1700383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06179a70e84814cce114e33ee746cf69dac5864f0587b7dc7a8a98fd68a00806. 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/GBBKS1700384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00ca26755b1a200ddf10b4899d7b9134a28820b999f6b08cb8fcaf8bafcc858. 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/GBBKS1700385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000e0251e5b328a8ff73d58d495ac3e99b9d06ac4a3af7192ce45ea2f94603b5. 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/GBBKS1700414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6648ef846dc772a676935bfca29d125d4b23351fc0fffdf2f710c14fa1058e. 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/GBBKS1700415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23c1e54c73e3f4acbcc5a4cbadb96afdff9954233a798632bdfb518f912826c. 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/GBBKS1700389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a9c323372484d9ada8c108f8a4e3fc5ed9556e4655cddd09d4e94f88ddc237. 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/GBBKS1700390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef94768b274e3ec82744db1d13c2ee5603f320ef6948a1263d16ac802a54fa6. 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/GBBKS1700391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1318fb46bbab16760aa24c358cb14fffba8a825ac871c691754619b387018d83. 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/GBBKS1700392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa502406ce1f12de5a4b8324c793e6c6fda81130f5addd61f8661004e266692e8. 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/GBBKS1700393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dd78dc0b8bb7c5784df06d34004b16b28a46cfb6536b6a1af7506e44dcca1a. 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/GBBKS1700394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac4ffbb18032bb9e99f1e48b8f7391acb7cd5405c454c350e616060f94e377d. 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/GBBKS1700395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b86c80c18852e5fda8ecd9141caf1e14d2ab0d24410b5819899507acdb795d. 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/GBBKS1700396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0baa6da83a523294b1656bda8942414e9050b1951a0a2b07df81b9be40756fba. 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/GBBKS1700397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb32b3391a6c93a9d27a05e566db0cc3000c3ba706e029b7ae038db4d422da8. 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/GBBKS1700398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2cd791608a842bdc9894b643701573ecbce849d48dc4874574b1e0176396cd. 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/GBBKS1700399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee346ba577bd2a1b0b53dda654c508cf462d3fe194d8c258bb75bea2e424b53c. 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/GBBKS1700400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730df2355277587c2e962b8088bddebe23f7b35b24f6bb53db28e2aa91245516. 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/GBBKS1700416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71199965b2e3c325a754fdfd53b520dc4c830cc9ed35c9eecd856bee8b28e4d1. 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/GBBKS1700403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24bec86c9a89a2ce7045437e89c37f32ed78ab44c37c661492b0fb79b5d5727. 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/GBBKS1700404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4abcb90dd6de5b614b3ec7d010f61d874e790f91757ccc86df3fc8245ffd53a. 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/GBBKS1700405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c493e5c80e4badfb1a18dff7e1d4556ce702aa0c1a3eeaf370b6723b189ba0e. 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/GBLV61905724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1c0439b014606b1c27a4b1a030688df93711c3543b8bba0ea1e943af9f4c9e. 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/GBUM72102706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4582a453a433b13e51aeebd2a4df8aad52d3a953ad4f153184b65af2e35133d9. 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/GBUM72102590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7c8ac0b5d26cbbffeaa7c00ec6bba0f0e304990a0fe7af66605bb04d2d9c15. 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/GBUM72000332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc2d94e573ad5f2e986388ffb6a6cfb80107539dba4d100ddc6a984f03165d2. 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/GBUM72102682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c3f8012899524d3686a0cefb779b1d658fc262bafe140e537eb7a18d896161. 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/GBUM72102686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaeb28b6fe1969a7e38412cb49623f3b32f05eaa044e68d532e72714fbb0270f. 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/GBUM72102544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f2c98d270ef5cd3edb81d6771de1097e056975325aa244844bc87f538b66f1. 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/GBUM72102990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62b9062e8f58641b4ca1465f74b742dfad533a906902c1f2143ab159f980fc5. 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/GBUM72102679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae1cf19cf2fd59c4c6f0cddf7e2482e0d668180ab7544aabdd7407146e7dd76. 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/GBUM72102687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69668a35842db3f8e4a7eeefeda0bbfbd022584947e65995b18044324fe52540. 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/GBUM72102992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742e3e45e09c2124b418ec44f1fe72a42ab4b36eba00c1a1ae90633e9b2ff488. 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/GBUM72102688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf0f022b4fddf4963c021214ca2022b85b3630583b6e4509a50233df6d3cee2. 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/GBUM72102991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e2671f69039c929808c755db9017b7cc8ec89e307e2f1d0b37bd2b43e64df4. 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/GBUM72102681.