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 0xec2e28560a97e8c17a31f2a54e7added66a011f06110f4c29725f28418bcd54f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10047115-362a-4749-8ae4-94f5fede6651.json and https://artists.proofprofile.net/proofs/artist/10047115-362a-4749-8ae4-94f5fede6651.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 0xfed0f27b6337d158bcb26cd3a73153134a2203044ebc0ea4a2d1c1981946d4de. 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/ITK262401112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845f35710efe30c2a709813a8cc852cb9d354ef14afd50bc92ae6945db094fc0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ITK262401113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed453007562322dd4e3789326e1ad2324c08e1e376d95acb6d0a2292df04ec9. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:17:09Z), 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/ITK262401230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3441d857d3e8009f7d60b8b0583453b8e48953cfb50a5fc9c5984c005a42511e. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/ITK262401564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24be6646cffd075881e166474f13ad54e6ef0c2df0a4184311e8f140c488cfbf. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ITK262401565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e03de7d3dc566391856447063dc1aefbde36234763a9d0471f73f4b2058745. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITK262401566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301a0851227bbe9e85bddb7bfe7b7b97422acd0fe83fa3b9c3b1fa017c740e39. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITK262401567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fef0f5edf8400cca14b405db7f3a4ce57559a9ecdaf1b5d204bcf9c3656370. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ITK262401568.
(Sittin' On) The Dock of the Bay - Lofi Cover Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c31695754259c5486a1f9b704a0d3a27bd4c83ec8c1b74c71bedb38b5c8c900. 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/ITK262401569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b5e66a40f324b43e3fcbad3756bcb812101ea282016b189199726752813a17. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITK262500466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850a391c350864a3be328ffe1a65325a8ec1e4294c8e11fe2146196330c8ced5. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ITK262500637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c61d7acde432295f50c52fbec9846da74dae8dfcd11f76ef04b6b667855957. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:49:52Z), 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/ITK262500638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1365d9ab4c6af780c7dcb84bb29ed56e2217985c429d5b1edc588e28118869a1. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/ITK262500639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfe6603f86de05552131346712d799fdc9f6c94de8ab1601d849f9b1412dcb5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITK262500640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4aaf68144b848e358e4185b17f8e9c4a91922d11ccee9fffad74c517157157. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/ITK262500641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f887516f8b4890040e4fdb6f7c66153e1c9e2ffba3199f64db777e882853d43. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ITK262500642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d201ea12820bc66b22c863dd7cbe496dee7bfc0e12d765d53c01a3b5f498e82. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITK262500643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85115a630a5686918b5faf400f171ce42cc565b069750758aa25ae9d7b779a75. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ITK262500644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667e9318231165330abfd5866cbff58b1e64732f8a6f7208ebf790e56a52c7eb. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:02:52Z), 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/ITK262500645.