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 0x8715d118fec934563d0ef38fdac067b97cac41c2f0108f90fcae2fd722aef5a3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0763df1-67bc-445f-8045-d82c87691670.json and https://artists.proofprofile.net/proofs/artist/f0763df1-67bc-445f-8045-d82c87691670.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 0x85efa67c00bcecfc9b499e1689e5b592a6f00cd97af5122a01847f29645b66e6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES5029100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e0c576b170d120ae48a4360c4c82b3aafa670545646852b7a2bb589c14dbc3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:42:52Z), 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/ES5029100058.
Amigos Para Siempre (Remasterizado 2025)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2189081ff7f1fd409044e38ca5476cedace15700f447f407b98c7a3d5398ab43. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES5029200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4e968d0f9c949c26b7b785aa000a8b1d46078905ead8455763c676cd3d1771. 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/ES5029200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f981a68c29c4f0914fa21a9e9689e398754d32368c25525b88fd9a7d0a4c49. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ES5029200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca85f2c0c6f12d82880a862c8b4cfcbcb9801a7d9bd833244646ce69c4d35d1f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES5029300688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2189081ff7f1fd409044e38ca5476cedace15700f447f407b98c7a3d5398ab43. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ES5029200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85efa67c00bcecfc9b499e1689e5b592a6f00cd97af5122a01847f29645b66e6. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:04:11Z), 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/ES5029100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ad7fff9f02bd08328db6e465be09236870c6b174850d00c61482bffb8313a6. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:38:24Z), 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/ES5029100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8705d1f8fe4259a3b8a7e3aa20bf0d09f89b176da2e747c86a244bfc5cd9bd6. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/ES5029300716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40605f8afc5188ab05b83271544483689d68478cb1a0b5314583763776fa80c8. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/ES5029200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae77c0eae37c7fe061152988a847a719a10a790c1ac1be9db1f382c73111528. 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/ES5029300717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf67a59f20e34f1774845af8354e54deccc7bd02cc182fd32e0b1dac9d071631. 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/ES5029100213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc005e15c2ebd5aa135fa7f025adce8af5ff0e59c4324de0a93d2f14c2e393f79. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ES5700600986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeec13b3a60c1bc7e30d9c79f3022f0c6f91fd62f0fbd5a25bc767c75b7a1dda. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:52:56Z), 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/ES5020100334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff37e631038aed266519829d7178a4392026bd2f1cc213ea209bf1c7808f721. 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/ES5020100335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cabd737912ce32f131e190736b99c8e8bb1ebb9e990fda90f10b3eee76aa18. 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/ES5020100336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd2dd267243918422afd18eecbb71683769c8159c7522d0ff5048756ffb95f6. 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/ES5020100337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e07e8b3cff734c9b8a3db24c362d230299b147101cc8031a5f19b65bd6de11. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ES5020100338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7bf56dd03668dab5eb0d9815f7d7324d96166ade7f117d0a041c7f8ba1ffb7. 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/ES5020100339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862732678a9056787d2bdb61a0c1665ded8ee0ffff32582049dad78e12ac6637. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:06:22Z), 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/ES5020100340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472a4ca4ea6d4f6a398cb98b285505b58d75a8c8ed906e63611d4524ae50d4fc. 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/ES5020100341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9b0836839da4637bab6f2958dd4d72fc015e672832560f10935a1887865ed3. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:15:55Z), 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/ES5020100346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe81d04408b5fce9aed1041cee889cf258a8a21876685924341784ccb11f39fa. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES5020100347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c4ad060658bf0be68d79aa3303c67f0257a754dbc28ae1e080449483db6300. 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/ES5020100348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd006cbcdb0b0b5cabeef411b797886d522d1273c471929008d6a7527ec2b17c8. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:01:48Z), 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/ES5020100342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa1f3031ac163483973f05084482d85b158536d85f259d900a0324019909e54. 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/ES51G1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd30c24afa3e9f534080f55b167e393b747d9bebf555ec29ff05d77932f5326f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ES51G1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab038c4f474125562c40878c01679fc351e7d8d06478c667aedb97def29978c6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES51G1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15d75d316d8e4025e7225be0f3ef991e44522820e979ea588c9cf24aad80bf0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:19:17Z), 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/ES51G1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552edea923ea3f6d61d6185f475aee755fd1cd143c2a190c3a0ee6e189c39236. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES51G1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebfaa877655e1e304d9795b8a2cd5d245d613e2ba528b746cd560f4831c7052. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES51G1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c432d8798566fdd5f360d78c884c4ea22a321e858e734ea9a9165d791a3ec1c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ES14I2300828.
Amigos Para Siempre [Pasa La Vida (Actuación TVE)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dac3874eb55bf4c00148d96a6d43d946dc85144c2a2768cf0556d01a322ce1. 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/ES5029200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dac3874eb55bf4c00148d96a6d43d946dc85144c2a2768cf0556d01a322ce1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ES5029200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff37e631038aed266519829d7178a4392026bd2f1cc213ea209bf1c7808f721. 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/ES5020100335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dac3874eb55bf4c00148d96a6d43d946dc85144c2a2768cf0556d01a322ce1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES5029200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dac3874eb55bf4c00148d96a6d43d946dc85144c2a2768cf0556d01a322ce1. 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/ES5029200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c590a213cc21c4f15abc05e367991bd9699dbe557203942ce7e3465e51cef3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES5029100060.