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 0xe54db03e6c6a59b43dc59163a1c6471bd0064ea36e2002602c293b71e9924ef4. Chain 2 (Bitcoin): anchored in block 953599 (2026-06-14T06:43:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0dbc2ed5-0273-4a83-92f5-bbadd225ddcf.json and https://artists.proofprofile.net/proofs/artist/0dbc2ed5-0273-4a83-92f5-bbadd225ddcf.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 0x6b538164aee289b841933ca4e9c498fe77d82b4bb920870e2a4963b59b7c1e87. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6MZ2497953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21524f58349098756ed83e6dbe9b2230db5ef3e037afddaf97764fddcab7c791. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM6MZ2497954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebd7084139898e40671908ea7f6cc0c618957bb69123621c571cdc8fcf8202c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM6MZ2497955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c639bb55f2f2989fa881052c7dd4a88a1ffaf7d1bd75ab67a906c1e3e6cfb3. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM6MZ2497951.
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 0x2478bd2937ec4ff91b1a60cb4702736319c58cb7e2791be2f2be795fef422316. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QM6MZ2497952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0260ca9b74fcb8754fd13d53562e57c9ef3e8ea503be40f2cb1f4dca91b37c2. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QM6MZ2497956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85da0ddeebcf4eaa4d0a7f455157f9171661405c734a4ccaf0c8302acd115048. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QM6MZ2497957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f46b8b23d1db95c5363334498463cadd5b42d0258f350ad7a0d7dea4222a4e. 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/UYMP52200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2123bfee0cbb18a9848a3293c305dec865279cc5ae46a17672c4f9d3883f12b2. 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/UYMP52200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14f95b312ee61425a177009aacd7770c7922bcf951d41d39d8add2db1d887da. 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/UYMP52200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb05252147964423c61d444b11c022b3ee51c330bf88120bef973b787655a82. 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/UYMP52200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6e0ac978da33293a4c0178a309d5059e55fbc8d2e1a147a3fd9423216755e5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/UYMP52200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb20bea3f31622005df08586e9c011f0577b0b340380aa9d31b3d596ff5fb3cb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/UYMP52200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdfcbda7390026754e09b1d22509e2bc45031a22b8a659e8eaec91606668ff8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/UYMP52200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bc439712d82f6fa939a85562b7c0e59431a06def336e0f054cf8e1329bf8db. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/UYH262000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8548d5eacf815a2543ba537a81c559bd2c93a91564ec36185402a62c764ad3dc. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/UYMP52200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f4b6c309d0d319e925375e5d3eb44eb412e6f32f30c0468fe799a465dbe828. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/UYMP52200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91d46e0f2d4510ac7f485276ac14db2c6fbf24204d1eb15d5f450081a8074e4. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/UYMP52200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aab3b026e7727d5eaa57469e6fdc491ba7698723978f1ec89d3bc035b500e95. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/UYMP52200011.
Amigo Lindo del Alma (Banda Sonora Original de la Película)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abf0f88db402e5bd133416eeb037f8d7219e49c13bfa5c5d0ee9d30ccb0cda0. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/UYS051900517.