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 0x05f4167ca328ea369ecc6a788eee69709f8f7159e9bb8b1a5c89870ad3f1dab0. 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/96409f6a-aad7-4eff-a386-ab731ac914d8.json and https://artists.proofprofile.net/proofs/artist/96409f6a-aad7-4eff-a386-ab731ac914d8.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 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 0x3ce91648b5abe7f1400a98fde04c682daae97906afca4bf120674fc766f2784a. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/TCADQ1842587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584c3e9661a511555a239b9e87caccc9ed272984b21b6ac4843c2468f6648951. 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/TCADQ1842594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e834fd68dabf70ff10c3ea593c238ca7ccaff3882afe43fd416b6012448078. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/TCADQ1842598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2c06cb931f6ff2f64afbd292fb9efd7485b919874bcd6062188903d9a85cf5. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TCADQ1842617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba380285352f59bf1a7c0b3ab7288c5811a0dc88c9d20b377581b3365411bbe. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/TCADQ1842618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe860a5bca403751c6f47ed27d440d3d96f7375b281742852a260a0f8d68a4c84. 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/TCACI1518496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d3623c534a67d48f5b21cd36de1dc9cb584f4ad2cc63bca8fed667e7827116. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCACJ1567270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24800c625cfb611dab97ff08882fc40d00141ceb7e0718f2f37212bc8188d232. 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/TCACI1507361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01dd7ced78284a2f39f15266c8fb96e7a449734470fc52b0ba894a33a220e03. 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/QZ5FN1954550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03ebec800344291c7f0636514583970c0a561165d7c557908ed7c4b06b7b774. 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/QZS7J2389886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306ebcbbf252019fb326b80fc406f33f6e8539a7f02a03d18405f54ec1a19382. 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/QZS7J2337296.
Noches De Fantasía - Live from Molusco TV
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d65613c092222894a6a8cdf126f40bc5c5251e50c1ae8db3fd63feac983617. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/QZS7J2384267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8921e594931e4cce30023ad3aa5737a7bff053dac6c6bd139933785e25f62bc. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTLA2560002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf967ec559b90902a2e2142e1dfaaea2e05e8d4bc67f78e91d007818b9fd09476. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZS7J2561613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fab887f3085328d8860248ef81361cf6c2a21351ce70da97343f4f652474dc. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZK6K2040122.