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 0x7d5aaf4ce043b2c899b146df32fe26e7e20e5c332a6b5889f5ac8004f69c3716. 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/cbc359d0-1e25-408c-8eee-63370c012be1.json and https://artists.proofprofile.net/proofs/artist/cbc359d0-1e25-408c-8eee-63370c012be1.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 0xe9d69be7450e0e90f09cf157b43d51908a42e3867a1d06f6fc6aa3bd85c06fd2. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:05:22Z), 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/ES71G1411288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a77f14ed0f62bbae531385c5184bfd37726354bc59a7145e6c23e746deb66ff. 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/ES71G1411289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11d997e20a808f66dfd045a42cd47a6c8fad79b2c3e6d8f763e2b8c2ca54958. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES71G1411290.
Chic Taiwan, Banda Sonora de la Película
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f88bf0f3285c4c26af6c1069294d1020b270a38726eab71a3196ed65bc655fb. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T14:48:13Z), 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/ES71G1411320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f259944e56207b3aec847d9f4865e3e30cebbfde2f20e98a6f868bea4cc2ac. 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/ES71G1411321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67428a66d3f7451912eba5ba748957fcf4b7f6271a7e0b1f8d3bf2560562a0d. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/ES71G1411325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec064f2f600894f43632034904787a7f441f36c5f4c5cd7b07b60061f29596a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ES71G1411326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686da140180c2c897fa23fef67d244ee341668d84b0dc503f70248e80ad1c0ca. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/ES71G1411328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebc6c16de6f0d4583b6b39c5edc61b56007d44663e1d9299a7a26dde48ffc5a. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/ES71G1411333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e582fe65eacf0dd660cfcdef0b7516914343cd2116e7e92e5480f62f298e7df. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/ES71G1411306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a0bf95fdd8c6961730fef1329925e03d44f0485fd1595f9da768c0c87e2da1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES71G1411310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a3c62bac147a1a1dbc89e7044760517c959810a42d086420c9caba5c85e432. 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/ES71G1411311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622005b6054564decfb864c3213cc3e9b8fcc649abb0d20dbe82867a011914db. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ES71G1411313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6daf1b1bbbd4c9093ad31e8f19eaef57ead649123d2a377a56be679e68518da. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES71G1410108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d09734fdaa0c432ce5f2e53be0bb3b051bb18b85b0c778075e5369e6129ff3. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ES71G1411617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fe6206b66753a71b2b628151e152aecaddecb3bb778a98ea6d3b466cda5693. 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/ES71G1411621.
Si Yo Fuera Elvis no te Habría Déjado Ir, Coneja
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35243a9b4e7dbf69f912acbc8273c1b4c475d7164010b65ee95256cc17a697ba. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:42:36Z), 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/ES71G1411625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189cf3cd6d0bbd13219b2945e1b0e181b0ef7ce0b696cce328191de0921231ba. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES71G1840393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c8fb4c5b8f59456cf9d3a89bdef3c45fb5ae42c0c1e416beb371602f85df33. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES71G1840396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ba59f9f733a7a12f76d512c7f6f6e40b943c615e0573ba4f9582be6bd5626d. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/ES71G1840391.