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 0x608529b8ca8294048e6aceb1db0423ed9689a86bacf5418b9efa98b715da8842. 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/48e23da2-89b4-4deb-ae36-e02b7d7eac44.json and https://artists.proofprofile.net/proofs/artist/48e23da2-89b4-4deb-ae36-e02b7d7eac44.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 0xa13b34e087c96ca4df943a728efd8d708a9490be18dcb4be4fd903e9ac8e0c79. 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/DGA062344788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7761ddbc1d0a74614953a7878b13d942da39ca59ae20bead05dbc6321c1939c. 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/DGA062344791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774c24b2b406c435f0beb7de65a5f472655ed5d67a72df80f0a5c1082abd91f5. 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/DGA062344792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8987617cb7eb8a64d688a685554e3f48b75b3e7cde54095db9fd9ac871abf401. 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/QZMEQ2150861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824db4b95c6cd148f75f0a5515ba23534789e05e3f2ef7e3190864fe98e560b0. 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/GBVW21400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4c5f7116484dbf2e08588273ca267270e09d26e65a5bd9673cb56356d7f8e6. 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/GBVW21400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af4bb98c3f38b089c44249f6e79f4b852f46e7be909faf1fee48234c24f6515. 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/GBVW21400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876af770a50d283569a48e15dc7ada65b468d5313ef65e95c0971403eca212fa. 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/GBVW21400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1314f8df87b0aff7243dbcb6d4bc767c3066aa73f052979ae8933fef8036b6. 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/GBVW21400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22aeee1bc945ae7363665e3168d5dafb9f3528b88cce88bc9656e0e0bd60c7f4. 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/GBVW21400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc07e4551416f5ab872d6dc393a96acd9cee84b64165980375ce8ee5077b48f. 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/GBVW21400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5238080ab48167857ccc0d7ba9a4bbff6e9f28ffaa8f226bb6466fe6aaf52d. 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/GBVW21400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cd85ec51254df7cbfe9eaea35f21343326493670fca7a80e880b79248c777d. 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/GBVW21400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d170e0ab91fc6386de791cdcd55fdcd6ef80028f087aa2094ce5ae572da86e4. 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/GBVW21400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e30c8ef235e505c4f33e5efa043c3f0b23a8cc732803516a12da6d4cc5af15. 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/GBVW21400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f82a75238c662ffc20b84cfc330e9517898b2033d638b121a7cd9d89266236. 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/GBVW21400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d5d65c7503b5198b1c69a317db6a9556bc0cd3db710802758ca177fe3d2554. 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/GBVW21400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130d895c51719eb80abcba5a21717eca497feb88dd0b5f7135f50ca95b8b381c. 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/QZK6Q1992149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52021c7bc3611798ac381137cf93af811fb4672c59e2a8456f0f78b3c16b8b5. 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/GB6ZW2100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa19141fe3807dd3c4ebeede17d8c6d09084bdd8c906a1baa424dec733e2a783. 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/GBVW22100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc202282045a7d24fc99b5783f1b009a6d2c5d3d9d700eee32f852de58df95b. 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/GBVW22200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe9e5f4661fd09441371a3b44869c86eef8e83100d28a07fe27e2a3d1c15f5a. 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/FR10S2470668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fda853ca112edce9ef4bfc0f004350deb8d1326e38ce1d9ee6ca52f05e319e. 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/FR10S2470672.
Roll at Dawn (feat. Jack Jetson, Bva, Smellington Piff, Oab & Leaf Dog)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247d93c903ce17ee0bb84a51dcd7615117d0ac27ac1ed70b9a8fb93bab14cfe7. 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/GBVW21600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f05f25e811f88fc3991f3d7dfa4ab7adb7216f9b15adc6b209d2e43eea3c8c4. 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/GBHLW1802654.