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 0xd8109076421ee9e73a472f1100c62660259c4e9e8cbd561d56a6fa376ce92200. 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/e1bf7b28-aadb-4faf-88b7-d56b0001d1dc.json and https://artists.proofprofile.net/proofs/artist/e1bf7b28-aadb-4faf-88b7-d56b0001d1dc.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 0xd90ff1d50470324e72250452830d19279d323656cc77364df32535c017049ac3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZMHN2081324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4580255f2cbd5f91a10bef7c2ae3d753feb0d0933b8ca1a402c565ac4b6badb9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZMHP2081422.
Ocean of Dreams (Atmospheric Phonk Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdad218de61256eb17603e76e4f4efff0f6a11a0330580c84273e24d576f4979. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/UKU932254935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b98b5541d2c2ea0139a5162731ecdd30edc4fe9e5c407248f1539e10b175ec. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GXBNP2305678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4feed77296ee3dd7a62517965fbf4c0a21d9c2a6ca25b673ce281c93a7a5c0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GXBNP2309055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f1d6f0a8cc1e983fa92b7df89b67f04098b72cfd354a799a9731de6fd09534. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GXBNP2447390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3887bd0389713a6030b920de41848f19f565257e4073667968c8194e46717e26. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/RUA1D2461964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e708d775fd7191c0df42a0fb675056dd0e44ba58bfc1ab4796996ca490c9ed. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/GXBNP2459488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbbfd7ad339096fed4920966040d1382122697736e41c5d6505803832e5e391. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GXBNP2459507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7f8b588317f6eb2b2b84f71be497fae8c27eed1684cafdadd1bfd4f47b21db. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GXBNP2467108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52eae6e383b0ea232d911171e3371361e6367453c9932c645ef7a3481e5f53b. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/GXBNP2480991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d07c046f787144feb0838b1e39a5b7d0af189a2ed86fee4131111a9d8f932b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GXBNP2498914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39fe256430549dd9368f8db0c7731cea8a179e29a8f02d83136b67894fbd85c. 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/GXBNP2499507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179416fe32d03859a1a6ce5426cef4b29128178c283e330d747eda9bd0b51d6f. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GXBNP2599248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a93ad6c94f25dd82790e0577167e8b782d0030c26301a848f72ca4d8dc6d60e. 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/GXBNP2561202.