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 0x31f9ec7b2589dd6ad2c5862cb2e6a733fcf109d11d70b6a81d0a44f3ff2a5603. 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/0facb342-d319-4713-a45b-72f422c54a7f.json and https://artists.proofprofile.net/proofs/artist/0facb342-d319-4713-a45b-72f422c54a7f.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 0xdec475381f224ed9e8fa122dba24bf0b53c3d37dd6ffde204d3107a82497c781. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/ART401301398.
El conseguidor-Regular pal pique-Te vas-Compañero Alazán-Soledad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30d204d64960188f3d87663e2037e3d753d4adcdd07afefb95a8b1f7bf9964e. 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/ART401301420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98fb192dcf075a4ff087d5391b6a3f4a043769c1549e5bb03f49dd0bfb96b9b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ART401301424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cec2b4e1bf8e4391712d9b5e711480af4af7f77cb3927115c5caa58433468b. 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/ART401600089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ef6fc20559cc38ea47cbfc405c3531791953006e9e839d0c0fbfaff2fd77b9. 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/ARTW91900011.
Padre Ignasio "40 Años De Ordenacion Sacerdotal"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98fb192dcf075a4ff087d5391b6a3f4a043769c1549e5bb03f49dd0bfb96b9b. 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/ART401301424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf00654ba54b3b32a96ad7b9c039242dbe9778c3803a1e3b14734e09e59fac97. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ARMU52100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e85e2a6a60ebc426f7536d3a9423e3e963ba96d3d7a7a8fc579bbb1646de22. 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/ARMU52100086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d08b179140be3b1ef17c348662c1ad768dfdd82089472aaff799477c9cb0a1f. 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/ARMU52100088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b4138a164b38eb9b6a27acb8f695caab5143302157c30a86d2fc8de21edd1b. 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/ARMU52100089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bc33f508bcf5847b74630a91840335e06cc52d684c8921753917c697599cb4. 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/ARMU52100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50910f49c70f995e40607e02d7d4b7f603cc344498ecb506d6a1fde3facdcd8d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ARMU52100091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc766418b7be25a586636a6a0e3987199e087d7055b88a5febcf041c8929c8c67. 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/ARMU52100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaace20e708f218d6176a6c650c277c1fb9fd417a731a2ad38b525dd0bc8e7d52. 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/ARMU52100093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fe875e3c5c3ff211345f2fbf876c292e8c7ca44550186200eb9a037c03b07d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ARMU52100095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c379de2901b03ec2bfb8bb70a4a092be3c1ec826de6a5ade2daa32fb671cfd7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ARMU52100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170018789716b1e4dd8c2d66ee1fb17d71fdeaff9205a70a4a26f9884bb35fc2. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ARMU52100149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80523decb7dae5583ef78b9664c2df01204187f2bc1186b7b32766caec264d15. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ARMU52100150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87791a7bed00e6883ca47ac36201f4c3e7d3bddf47bd2f8ebe0e0d32ae2d09a3. 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/ARMU52100157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebc27c2832d26c358ac5c0c13b10927374dc3c1e7ef986e5263b16caaf2c4bf. 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/ARMU52100159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7517e26bb01304d8d9553558ca13dcc830be2021baf8c298d3c3193c3e8d0d. 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/ARMU52100162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07179f866dc8ae13cf8f4d26ed31a1b85b6930d5e973b1ef7f8bbb9f0f2e180d. 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/ARMU52100214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed65f446d4c8ac8249e4504339a59e342f6b1e4f7dd0388781efb7d1c9f25a91. 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/ARMU52100215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0359495fc140da6374a9bbdb88fefb90ef76b472b10e59bc836c3c530c291190. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/ARMU52100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e78f1aefcdbad8c506a15b69949ab45659f3a78045c07f65c7fb33a919c7ac. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/ARMU52100217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ee7d2e25aded6aeaf157d1716279904452784ba7d72cdcf72f79dec56c50e4. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:52:02Z), 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/ARMU52100218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805a83bf7a2c0d572b8e77251a1fabcdbe91d72698d840de19fea83df579b4f9. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:08:52Z), 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/ARMU52100220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b44590cce7688b1923a0c601142fe3663980193d503cfc4470185271df8e53. 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/ARMU52100223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18b8e55e14f4475e560b3bf2095f929b2319f23df8ddb67f034ee41885465a5. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:08:53Z), 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/ARMU52100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a4a09457885fc256f010063ac04dc638a1d0da7ca0d5afdfb267880f45a43e. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/ARMU52100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3e16581635ac454c9bfab650f86d20c8a5c8955974993f14008ef04a8bc926. 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/ARMU52100203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d18cb61f53be31f9196b8f6276ea40b87eb046f3a5760c457325187636cdd2. 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/ARMU52100205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293623bc03eac7bd1eb29f0d38e440b559a72f2d681b0770c3be686c5ccddfcb. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ARMU52100208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f8b9c0fb05c5519cf03b443b6a39d4cab8c80e3a5e71dacc9e45e1fd32dc64. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/ARMU52100323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b696f845d9727c0948cac884448bdac046b7bb79fd6594aaa265d36b752b7d. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:05:10Z), 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/ARMU52100329.
Hoy Como Ayer, Vol. 13 (Remastered 2025)