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 0xf4960dc176225b23010630e98b78f88bf059710fe17e7e7df693c0a1d89b33f8. 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/919c89c7-0f25-4f44-b374-fa998100625b.json and https://artists.proofprofile.net/proofs/artist/919c89c7-0f25-4f44-b374-fa998100625b.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 0x481f09c17889eb57b4630ac427bc1a2b37369b75cf7e1a4d2e8255e5aea47efe. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:13:46Z), 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/QZHNC2110198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9166b050d78eae8ed669784a286cf656ba6e501b1b495a908e4096670b6b560. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/NL4YD2100226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787f552b854292b83ef8fc120e25735b5e813d6f15e13dac036d436a4acb107f. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:03:31Z), 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/QZN882160730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fe3f6b30b6ce186c16c89494f77cd7ae248d7646ccfe0df14f513f933d3c2d. 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/QM3DF2191394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6b500bebf9f31389ab08a668a2d901ad4657899f8bdbc4d72b303d67699e8e. 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/NL4YD2100370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d288c773f394e4ad2eb35b0f76f793856a81dd0ce37ccfa94dc6ab53b3933ca. 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/UKZGC2408769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7cbf4bd6dee566bb9cf3071a3807fa379e622da0a025a4ffe72bd38ca88138. 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/UKZGC2408770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9d0f6c436fab49dcac910b1849d904fccfd51c6327c5d251bf142d4500ebab. 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/UKZGC2408771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b0d35f4c58f93e44731506a410614c54ccc1bc8c0c09d9cda2e2e0c6a74f9f. 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/UKZGC2408772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81ba27c7fc9bef36897e4a3b4bf72218350ad050a37835751d65ca3cebe875d. 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/UKZGC2408773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508dc648d84473da485a2d548e26379bc1aa1ae14037a31894d632e31b5883a4. 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/UKZGC2408774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94655ac899a359fc0107c2d8b196a8882ee4c519f1634a906f2419520ddfe81. 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/UKZGC2408775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb10814ab05e321048c6bc3f031ef61177d7d32c1f2a2d72d6d2633e3a2cb1f8. 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/UKZGC2408776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ee424e5f81fe0d8059f7901270c3921938978b7214abfda92ce1832e85c3ea. 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/UKZGC2408777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6bc2a0708c0876d3c35db5079d03b243202562a281e42faa7efd1fec66e33f. 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/UKZGC2408778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a16211ca059d7a903940381f8c4bf931d051e9bcead3c1cbbf7b695f085aee. 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/UKZGC2408779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d996c18d26d5eab7df78ddab9490b4d68fda4c9fc2d96f013940153e968d6f. 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/UKZGC2408780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20b25ed174bdd23552b84f1cbab774351e5166fcca6bb1faaffa4a9d28f9248. 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/UKZGC2408781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddddc2acdd3c853b8d5ccdd492f7ba64f2543e0c4f067e475e2bed95d50eb417. 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/UKZGC2408782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16a41480f81fb673749a2fbd1727e0cc38b77020f7a89110434f8a38dbff0c5. 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/UKZGC2408783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a560e3329ed6f99dcf890abc77ce3331740796b94a11837b1f906b2d5b4819. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/UKZGC2502141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b727ecfe93af6343eff8831ea926cd2e807e1567ef5be6796e4553f2e3a3042. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCD4N2200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740e5f9aec6c6ac4e54974421643ec58cc675428f9f5d9164838170922aa47a6. 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/TCAEZ2043195.
Mellow Dreams 4 - Chill Beats Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6b500bebf9f31389ab08a668a2d901ad4657899f8bdbc4d72b303d67699e8e. 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/NL4YD2100370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40cc6c39345b45543ed6deccbf4d5fe143555e47e4847123a211938b6e01a78. 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/UKZGC2407667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d737c042c0a24c70d3c439214790046e15de0c455d99a420617515a61607ea. 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/GBLV62204901.