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 0x2030f7d7f8b7e8d2d79176d8d3c7a513b3b804083188b70e3c4270233b7fad3e. Chain 2 (Bitcoin): anchored in block 953599 (2026-06-14T06:43:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0eb18e5c-22e7-4b3f-814c-d2d2028098d4.json and https://artists.proofprofile.net/proofs/artist/0eb18e5c-22e7-4b3f-814c-d2d2028098d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shirley Shirley Shirley! (Plant Music Vol 1)
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 0x8436cb0568f8eee2f2adeb9f0b8a64efbdfe428393be48b5e2f0f53a2563ab61. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/US25X2201293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3636d2f74303970fa9023d347836eba112d2df366794eb530bbf20e306044499. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USA2Z2200480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2ef4bf4717a88a6e40abbdffb32b6c1a091a587e805d9e84c7ddb7444e84bd. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/US25X2301216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa312f4f762ca27cafec8f10fee62744d13cf1fbb30156c6e670d406d68c2e135. 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/US25X2301217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d4686bfa8e79fd1e3c110a70748832abf34604818a4723a2e6178f28f182bd. 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/US25X2301218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc6182346acb37a4d86c3ad5cc83c716c3d3b1e7f51e92e02517ddaf916286d. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/US25X2301219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d8e9db602f17577e4b70b9f4d211877ff258ea65984bb7ff687bbd169b51a2. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/US25X2301220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a286ab6dd310156ea9d00156af962ad8d4c8b372be38d332e0df8238fcce263. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US25X2301221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297178fc0fc962521254369110f2522b339329673ad5fcff05822656dd103244. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US25X2301222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b001954c07c9af9e5e934e9270cd31d52d7bdcf637294a6e692173f20044e7. 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/US25X2301223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f189c20cb309147547a943473759e3673580888b904040d7641ec299196e3b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US25X2301224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea751d1aaaa29a90219bcacd9c654111eec8b439e8fa599d014ad4b1ace53508. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/US25X2301225.
Plant Music Vol. 3 - The Golden Teachers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613828ac4210daa0223fa7ca6b44ce37c681ae92945cf069f5a0a01202799a47. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/USA2P2463931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6a851efd35d1b859ee8078dee0925ce510630a3558625765625dacd6c6cd8d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/USA2P2476070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110954219c989f85af58c89f34e852764a630b54365f8e0b4a972933c5a1c76d. 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/USA2B2404202.