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 0x589608bdf4605c0cc83b7ecb1fef8fc2fe86297d7692b36d4c5ba62cd45e6295. 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/ad80815b-9236-4310-90b0-7da2854bfad3.json and https://artists.proofprofile.net/proofs/artist/ad80815b-9236-4310-90b0-7da2854bfad3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Heroes de los 80. Un pingüino en mi ascensor
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 0xb3c0d467444274da51f4071a06d59d33da887d6b0383dbbb03f14b317babf735. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/ES5018735004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae430b2a7d07e0f086907594fa3cfb27360fff4f3d617c1186868bfe73c348e. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ES5010100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524a6d32c812116e299b5f3b66fd997fd32d24f66cd792f73a9f61f8ed81e002. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ES5018835001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774d421bad010376b5d0dddb5c558f4fff0280043eef48f0a3c72efb1177f59d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ES5018835003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ecc82a3def47a0ce20fa9a4b376869bc0d17f9084d15e5a4b4747e41e200e3. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/ES5018835004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21aff01cd82a062c80ac31f5b8a3a80831cff7b3986350798799b55b95a1b058. 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/ES5018835005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608584ad5caf6f49c9014b6f1751a3b5b8bc9ddc4060ea842d7b221b397a4fc2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/ES5018835006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cc1ca5fbf6f5d8dfa612963b6d33d5f772d085f513a0768603179e96351fa8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES5018935002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbf41824f1adb96dd58005ad326934999326cb19e4df92428a9c4991ed48035. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ES5018935003.
El sendero luminoso - Me persigue sin reposo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9c4756ea4980af283f7797f3e8347b4f895faa7c786ca110e4026314edd231. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/ES5018735001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd713b487969a23b8ec533a4dbbf429949fd8e1958a4a340e05838aec5597831a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES5018735002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d3027c0500ce81b9e1bf0bc5c93cff584d501ce83928c106c46b5ba2223a1b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES5018835008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2a489eee115286e2ec59d3873412d0b37facde35dc1b526dbc20ab8199fc9d. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/ES5018835011.
Heroes de los 80. Disfrutar con las desgracias ajenas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd245a539eb856d7113972f7aa3709ad0238c621c29e9d5c18d9427183607e8. 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/ES5018935005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbbd020a7651677708fa123f1faba97d06dc2cca57105da4306878af92b5f22. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/ES5018935009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee63a4ad5d1ec6b37bd9b99dd01b57f5cc1d6f1a37731c38ee704007db94cc03. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ES5018935011.
Heroes de los 80. La sangre y la television
Eres más complicada que armar un mueble de Ikea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49cd6689caf93ea0db77a65a17b409b5333b01a540db674940f0e45d7b4c5bd. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/QZKWA2040888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc34b13223b5e6f4a1b89cec10863392076cb04db8626abfca45a45bc506c365. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/QZKWA2040890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11b23391f35376c5bfa20bd4653107e8ad15bcdb639dec2183247a36467b899. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZKWA2040892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66db8d41d7b2c8af27f1dd56d5a4960c16cdab4b0a97787095f98b181e8e8acb. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/QZKWA2040893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1aa08af303e5a7414e9202e9d1c21f101cd9350069f9c69e3c605717b1d4a3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZKWA2040894.
Las 100 mejores canciones del Pop Español, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fee9a229c34ae9bd2c1b31c4a7d32753bc4995e8c1c5a056701678b1d85f02f. 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/ES5018835000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348e1f188a1b3fe6dbb62cba10f1edc07320601e6fdae3fbb98ba96a48afbc61. 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/ES5018735000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fee9a229c34ae9bd2c1b31c4a7d32753bc4995e8c1c5a056701678b1d85f02f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES5018835000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedba1f145e9055b64f4caeb6a3ce993bd2cc08c1a832f96c3cf671557dfe79b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES5018735003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedba1f145e9055b64f4caeb6a3ce993bd2cc08c1a832f96c3cf671557dfe79b. 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/ES5018735003.