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 0x33483dbc4c615fdb41acc3063355eb5869c42685b583a4995ced7463ee2b7fe1. 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/f7f399ee-ec2c-45b6-afe7-e5c5ddd865b4.json and https://artists.proofprofile.net/proofs/artist/f7f399ee-ec2c-45b6-afe7-e5c5ddd865b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Neto Becerra Con Banda la Peligrosa de Jerez (En Vivo)
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 0xcc7cd11c7b7fc0a07033d1f4e998f74f27b796148a29af01c67e3035ab4b22cd. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QMDA62227318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369262b435e4719ed546e7a89c434f3d55623b8d34ef378b013813e318bddae0. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:07:24Z), 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/QM6N22483361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a573409850757f9f6b16f330d330abd476388ece4da7eb510912cee437c540c. 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/QM7282409632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca0cce5e9677dedb2e66890127bad1fee07750d0e8fc8f6b76183c2e6248478. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QM7282409633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f873b91edfb28d39e8f003d93736b663666ca05753d92effdec44c44273bac. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QM7282409634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369262b435e4719ed546e7a89c434f3d55623b8d34ef378b013813e318bddae0. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QM6N22483361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3357f654f35eeb1ed863d809771650439cf45e76080110b4b0facc4999b782a9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QM7282409718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c84276ecdc4be39adad10cb8a2147e7aa6266e1eea30568c6e0e89893590524. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QM7282401901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a573409850757f9f6b16f330d330abd476388ece4da7eb510912cee437c540c. 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/QM7282409632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca0cce5e9677dedb2e66890127bad1fee07750d0e8fc8f6b76183c2e6248478. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QM7282409633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47aa9c51bed3c710c94d825a8054addaed8fc5633a85a5488ec9c8936a84237d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMBZ92417303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef05b4d777dcad929a6e1ca0f1e325cf9cf6e2e911199f854c5daa9078eaf703. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:05:46Z), 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/QMBZ92435053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e259b0c30e3c4e145929bfd76e43216ffa022e6a77fb29d60a8478fba3e1371. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:54:56Z), 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/QMBZ92435098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef05b4d777dcad929a6e1ca0f1e325cf9cf6e2e911199f854c5daa9078eaf703. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:55:26Z), 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/QMBZ92435053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f99447f083c503b1eb34fd1b9fca79724f5df807512465e1dc3932cea34b0e3. 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/QM6MZ2462205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7e7830231c951554e7d482cdccca5bcf5eb363c4b581307c7ed6b42d56a9ef. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM4TX2565550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab145060d67827fd5ca2646d1918c3d5aaa09515189575401be318e6afa0c89. 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/QM4TX2565552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa769ff09cbdf264489fbe55b3629fb2743f19262b6b4700eda57e542313008. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QM4TX2565554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08658d36438edb5d3f1a74781717424d8aae3b61fd9dbc07bb21760c646975a6. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:48:46Z), 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/QM4TX2565555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620cc019716ec410f8d7cff5499b3baa9c8a7e6042e8b9cc90c1b206cfdcfa03. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QM7282553090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fc2abb2811d785db701438bfd4c1b5710d91db9a9de5f8966d23540ba8a29f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM4TW2342657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6f82cf61d4db1518cfd9f0ded7752081f0716c39e7e36e3997c9d8a578e8b8. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QM4TW2342658.
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