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 0x4f8e462895e06e48604fb3019095aae50a367aeaa3852303896ddf5017009a49. 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/887b1a28-c50d-464d-b9e4-5c8b90f49d28.json and https://artists.proofprofile.net/proofs/artist/887b1a28-c50d-464d-b9e4-5c8b90f49d28.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fangs feat.JJ (prod.aquasocks & Jaakuna)
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 0x018f7854baa474111b18d0e77984d2b27a205da39ab3ef4f098db0995128b01d. 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/QZES72201085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d66cbf024b55f27ee3dccecf64369ce44fd1e95f8e9490bce05d6ecd620a597. 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/QZNWV2210090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bcd9d70bf114321f9bf4d4f81d09395915c27ae1da650f3afce498385f3d60f. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZTB42250722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fba3aacfa5360ab5cd16990342f6e64b75ba177a3f48f2b4f6eab46f2687cdc. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZTB72267599.
You can't always pretend that you're okay
You can't always pretend that you're okay (Sped up Version)
You can't always pretend that you're okay - Sped up Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e76542fe55439e9e14f7d9e28592a8f22d010fe53b173190e051ccccb4f337. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZNWS2366732.
Love and all the above (Sped up version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cec33d5ac3bbebcae5ad8e6b2286c0a61577d3286d1bbd06d5636eba193023f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZWFF2303267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579103018616892fd7cf47cc9eec555baf5075479600a4dc5b3166fb4cf224e0. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZFZ72401775.
Do u really love me, or are you just saying that?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef848365ea77252c20d9860e7dcb0fcea6dee135e8a43643fa36b83648900760. 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/QZHN62458400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c433d246638fd2dcb7828cf0b5b9902cee699f5f194218ced95d28040151be8. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZNWV2431095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ef1122dfce78601a8f6a90aabdc283ecc2886b4039e6f8df27c07bb2933078. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZMEM2559267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91904b4b20ca37be09f65bc544bb74b9d241d52320d8cafd110c18e9b362f346. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZWFF2511462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb391bf4584a75a65fc0f1219a53427004425ded5cdb2c9c5f08ba6bbc4f88c. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZWFL2518660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103257481ec1e57f580c43be2016fed0183cd4d6e4ff849d77fc07038821cc90. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZK6J2219611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ddb1d5822ebff8b240b8c0dd4b6e6ecbda39d29d891f60c70264fcd862ce1e. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZHN42228556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5f4d7ac215bea44907bf28b90bbd331fdaac1ab94ac3f6f57fb738b6605ece. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZFZ72230166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a0a5c13f6c47649bdef160bdd1d866ebf976e0b85bc04098bbe4b94a84a0ae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZK6K2389005.