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 0x85ce67251088388c57f0e510d1e1f5f892364b2f26cd4217f0aa841fcc53a04d. 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/3e10620a-db27-43c7-9237-c86e7c095135.json and https://artists.proofprofile.net/proofs/artist/3e10620a-db27-43c7-9237-c86e7c095135.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 0x6b28252cc5695f66613f0e13160db9e0c5c47e88bed259defb3bcdaeaa5a846e. 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/ES5027500293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa259e4eed85e21342d84b41f3e02060ec5854d3f12356927a8711af2c8c215. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ES5027500292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0c5af835a20845da7e296493c86cc3cdd4267f70fc94ab9501bf0282278793. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:31:28Z), 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/ES5027800096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fd17dd6de11e9b731103e4e3245df633c401f710ef02e6bc8babe77ecf6cc8. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/ES5027600242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3f285ab40e46a869059342a887b065e02d1ed42730e14d1818921fdfe2375e. 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/ES5027400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e541de2de8548bb36b511ead693426cc7cb8f5e3d0d1eae574b590543384a9c. 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/ES5027600048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31af0c3ba56184f861427debf2da5ce98ed83d2ffe61d45ab41e1673be674a3a. 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/ES5027600082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe043d16f77f3d078aec409b727cf758893255f839e129d8139511b62c6e7859a. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/ES5027700140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380cd7da7975520adbe56a93d3a73d0c9e92a880b9510343558d45e9b79ed393. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:52:48Z), 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/ES5027700141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007f9b8b8dc9ad123f5789d0cbed5d002d7779219262fdde6bcd9b63a4995b74. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/ES5027800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b13e80216678b73578e8abe4fdbe35643e78254cffcb05f29cfd56159bb0fee. 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/ES5027700142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6babaa85db034de1c051179098f87d527a2639baba3a9c3106cd36abba6d126. 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/ES5027800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cba8d8359406c6f0fce0c4ae4f8480f416f4a6ebbf479591ff64d62f43e222. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:37:52Z), 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/ES5027700143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67412a4c7ef6e0c5db74db37bd5404bc505a90f47b81677166e0442cf9da07f. 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/ES5027700245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb072f15ed5ff8a6490d919f721f66337ec4b6d6f7f5320741978812e213821e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ES5027800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45e2f131830dcf41ec5b82959d0c714f865fd1a04a19062f840cc5b2cb51575. 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/ES5021901052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aba7879363cab31df28c00f02b7135982b5d3e1faff6bb38c38c12fb2c7a4de. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ES5021900460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f27ce2bb613d443e93d3f995f78e954238d49f845aca3702bbcadbb5ee5f98. 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/ES5021900598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c1bed1fd75c06021797c8f9829e1f186c41624adefae7546729348f96f4be3. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:32:40Z), 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/ES5021900617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b0639f58175339c7847401f265826628b741ce7b976ea983d1f3691cfa6531. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:22:48Z), 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/ES5021900582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b0639f58175339c7847401f265826628b741ce7b976ea983d1f3691cfa6531. 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/ES5021900582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f038020f19acbcae096a0e395140d972a925f223f01446f7f483c97514fb7f. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ES5021900578.
Eres Tan Bella (Mary -Rose) - Remasterizado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dbef3983fa0d1173fe4b4c7cf2114eaa446199ee6143733982f15cbd9211d9. 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/ES5021900604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e14580faf305da10eef7cb12499645872ddbd505667cb5a6ed82dbeea53659. 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/ES5021900610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb5a9b3df77204c1f05ba88c887df3d4310066d99df315337865a57545ce988. 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/ES5021900602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64a66a1c36033d61e9d7c1c6b42bdcdbfc0011a0342e4c92572223fbf50c3f6. 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/ES5021900603.
De Corazón A Corazón - Remasterizado 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b8bae26646d909af3b2be05a89983c9b889657ac1b07801af1ea3822c8c539. 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/ES5022400633.
Me Lo Dice El Corazón (Remasterizado 2024)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22563864356953edbf93bb81871dda1636ecc5fee72b7a0972074c30847b71c2. 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/ES5022400648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7235cbe38ab4b5a555f067fe8417e473d953ab3c3b42cbe5f8993daf32dc4f1. 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/ARF070700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca0a8155802a4456d8a4ca4f7071ed3982e63ccf5c92a129b9109636c9b7d94. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ARF070700061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701d74ff552b2498943fb504b5a51df9a704d034170a5e819879bd1bb7980215. 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/ART0G1204276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb899fe81f6a13b86784516680c33c3329ba14e5c555cec5e1c6c61001a95bbc2. 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/ART0G1204270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49807bb9d39fdfe1e18b5458502ff56d6e7fa31247677c883791636f271d3d3e. 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/ART0G1204273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701d74ff552b2498943fb504b5a51df9a704d034170a5e819879bd1bb7980215. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ART0G1204276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bc7a1197714799ad6b8de014b93789f5a16304676d8b4ab64b8f73fa7fa036. 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/ARG101514213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7dfa6d2d8da2c9665368a0b08bff65587617365d7802b078f4e7bb311a8d8b. 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/ARG101514218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ab40e70ef3197e8394bdf7d4ab96c948ba00dfde0e47a2e6bf0994314f35cc. 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/ES5021901051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ab40e70ef3197e8394bdf7d4ab96c948ba00dfde0e47a2e6bf0994314f35cc. 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/ES5021901051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebdd06c0a40943b03fa74f8c735718f51fe8d128c68121517361d92d8de4e09. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5027600068.
Los Grandes Éxitos de la Música Popular Canaria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2d8647e612f9be3f690993668cb85dec4f1e2b72a6291e0641b1aaf0672aea. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM6N21414558.
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