1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x944b06bf9f63563010ce6f6e77e6400437541f937941e03fc1b6ce862add6c61. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee279b6b-f53f-42e2-a638-1eb4f43447ae.json and https://artists.proofprofile.net/proofs/artist/ee279b6b-f53f-42e2-a638-1eb4f43447ae.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 → block OTSBitcoinBlock must exist at that height 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 0xe78d8dc7f4c32ec8ad21b25b6095992b38611aa315d792e1620daa081f938c51. 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/EEHU32000393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16bf6f863b7d00889493fc96bff4620d6dd2598d75d5d3631502a21961012a2. 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/EEHU32000394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86981ab0e057e1b7ba84f9dcbdaeaa9e782dcaec92a795afb57c8ba67b5082d7. 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/EEHU32000395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b333ff2a3c5843c23b2b12279b04c0531b46cd996f412123eaea1759d00366. 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/EEHU32000396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa090753e573d5d245de32d185b593d7d5893197ea1e9cd4aa850cc8d56130845. 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/EEHU32000397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504fd46eb72371f047132f82b54351bf6e51288457cd42fac28a798b6679793d. 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/EEHU32000398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4b53f83ae62406d531bc824c5597b09bb959057ea99096498009f2e7baf83c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/EEHU32000399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fb6cf47d6cfc87ce4943c094b152e6ba3b031cbf6043ecf3d42217cb92e8dd. 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/EEHU32000400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0f02c44bbdbf6007e37cc8245e843d5f94725e7dc9abd4aeb318d474404c4a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/EEHU32000401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec726adf92f1c961a9c9845ba8d2850a0858e80f84ba84a247d3ee0f206109d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/EEHU32000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d2801696a541f72b5a9abf67c76a19b305de9cc5ae0eeb71df67aa980295e7. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TRA162100774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52133e94e5fd30ebaed64369ba621b75bab71a7a5416510a7a5e79c21404336. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TRA162200256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe129017a335790fe612be98d0f10d68c76efb949ed77931c08452fbcde29b73f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/EEHU32000385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cfae2df0a02bc7d43a38cd76ca7be5ee657c0b8c27c57e0bf47916c72130b5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/EEHU32000386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bab9d698fa2178bbdfd932f91a32879cbd23e4b0abd37af7e922d8e30434267. 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/QM4DW1773331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b7e19f870e3b8141c05c7dab7979ac1c18df33bd59a2ce635a19e1523c8c07. 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/QM4DW1773332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1607cb467f6c5729327a391b486871bd965dc907cbd54e2014bbeb0fe74116db. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QM4DW1773334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77874dbf20b655040f98e1738fe9369127b29537e6ad1339c0b5637a9ddc2a6. 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/QM4DW1773335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3582b214c622ebd4dbe5669e3c62ad41c29edb226aa2176315db16e9c9018089. 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/QM4DW1773337.