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 0xee9ec55ebec0a5091c20c49b987a07c538e3921dd9264fcb37a3f0aaf1d0a286. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ead3014a-90b1-4691-a44d-59870100758a.json and https://artists.proofprofile.net/proofs/artist/ead3014a-90b1-4691-a44d-59870100758a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shapes: Collide (Compiled by Robert Luis)
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 0x884279c2ef000a61b4130afaf407f41f0bf243d61c0dcd1a49432ed387e1fcb7. 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/GBXED1102010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db8eaafcbec130ebea9d1dd08a4f2b4b3217793c74a9198825c1ae261eaca1c. 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/GBXED1101090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6a37cd62148d0d40e3edb62f64862189497c0e4d589b1443d006bcbf207079. 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/GBLQT2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ba2bc96ecc8c1bd5b356ff7860cb9bf04242758f54b375e27d5b5f3c2b5c4b. 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/GBEUE2300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2810f5f1dab2065354403d4cca38911783571818f2c496045ff8c9e6d43a99. 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/GBEUE2300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efed6c7a12220b847b726a2f3dd3705472e747fd8059831fdb9f2880cc51f38. 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/GBEUE2300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4238720b9dcdacd48a3d4886f1e68210d55116e0973ac598b3754ca8402ce122. 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/GBEUE2300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa09b58d981880ca531327f3aed317793d2b1960d7707560395d58709b58cf9. 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/GBEUE2300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ad01b57e844cbb07f661ca6115ab6eac9d9dac80ec08fe6f4946fd1d2468a0. 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/GBEUE2300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e646db9a63d16ecbfd32e1e54b9c9b69e715fcc9f1f0bfd4885390108e3a56d. 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/FRIDO1910758.
If You Wanna - Adesse Versions Dub Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec8d4f237ba83a0133e44d927e96a6f78a39aea1817d1fae8d806a1e550b36c. 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/FR10S2089939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42e4d787e119283991fc220c64dd26fac3bca210dd6ed1d52b62b1c0d074ac4. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/GBLQT1900065.