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 0xde88f442a403121b4509409309083fdad23eda6f4ea73d69670f477458ff263f. 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/26435cd3-19da-41fb-b9da-f11227545313.json and https://artists.proofprofile.net/proofs/artist/26435cd3-19da-41fb-b9da-f11227545313.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You Wouldn't Wish It on Your Own Worst Enemy
Come Home Before the Streetlights Come On
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 0x063482dc240689c1a977593e05b23f6abf2ba0627f664f9dd1fdcfce6a225a21. 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/QZZ7P2449875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84102499f43ae575d2706a4d2dd6ebe6e93dfb47550bdcb3d2a3b73cb76864be. 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/QZZ7P2449877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f388f2d2bc5c25b35a98b5c6b936842652125144f4cd5274d9b965a3fe270e. 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/QZMEQ2459707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97d86273dbc5417e90cb5ec6d2c52997d07fc87bac1a6c4a5e27696da4bdc90. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUYG1712128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375e97f20828ee65e001104faf5f3ffe707526a0552d3fcd1aa6c8c428fcd5e5. 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/USUYG1712129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e84abccab612c096defad024633b301a0f1a5cc882001f26d7d7b67c26b0f51. 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/USUYG1712130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499b64bc36b6af46c4ade2c3aa979123afc4a346fcde4728d52f605e7106894c. 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/USUYG1712132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33849dbeaeb52287ee100c9e3a39bc9e15d9d7f05cca0b8e603465825de44af. 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/USUYG1712133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484663a78446960ca6c3c579ba9c2a0bcfea74c54e1aaeded9a051b58d824990. 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/USUYG1712134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bb409fbc4574a36451c6bbaa85d17f82c7697734ace191ffd42dd3dcd8eb06. 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/USUYG1712135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f19c35235afb107588edfc7eaeac9aa605c6aa1720da04ab00bb5e994eb343b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUYG1712136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974bfeaa1ce1b6890b2638652c0ba4bc668d37040d024b63f4496d0d573770b3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUYG1712137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354d90d31bf20265691a4e2f72c96369fd530aea35771eb08aa157ae87129d39. 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/USUYG1712138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf267d80db1bac44c685996136f66bb480992900c4b031ff45172b45f3183905e. 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/USUYG1360460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61485365a5313d82d8ea12465121cecb3c60bf300188d94773f2ef4bb1d6bd6. 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/USUYG1360461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9145e3d09ca0fc3d13cd2c41bf75fd15e92c46eb6c2203df142ce761f31478. 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/USUYG1360462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d56a51e9da2ca25c64f11aed841fdaabad243cf491b552de394cd3ba5e2a56. 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/USUYG1360463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73e8ee52371f127be5d667d9974a662f787da7fcce5b21715c1fc01fdbca3c1. 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/USUYG1360464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf0fe661b01d8b9984889fd6eaa4178309df64e51b11bb00542fcfd66c73f21. 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/USUYG1360465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6303869e92a2d68cda8b2a8436e6ff3e6854a4fcb9450216a697e2303641e2f6. 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/USUYG1360466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf225fcb90f075912a6608cced38eb2a3d27577922b68378ba197d9304dd5c2d. 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/USUYG1360467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe15db9ae4851e57bfb9e8df8797c143d00cec7fff9ccd2abd507d1e846ecf54. 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/USUYG1360468.