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 0xe9baa6c40fe25e4a7b7aab4b4761b25b690143832051dfa4fa0d0837bb3201c3. 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/39d231d3-34e6-496d-97c7-358dd2f5d42d.json and https://artists.proofprofile.net/proofs/artist/39d231d3-34e6-496d-97c7-358dd2f5d42d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Conspiración (Habanera de "Carmen" de Georges Bizet)
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 0xde5d2b83e8b7baec96242aa9c3658431363d260240f6936ef70e3540b4ec4372. 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/ES5110002816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe642d166f2b0ad829003a5ac539740d2bed3e37db1ac76e5bc9c8fe5dec74058. 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/ES5088603858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db85a3cfc727fc6e5504b57da5a52c8148ac25dd1b84d5b3cba4b2e99cc3cff. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ES5088708706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d57aee08118e517d368bb7e9291866509f24982cfa6ac5aa696b83ce53c505. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:24:55Z), 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/ES5088703846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ba0851c85298dbe5dbb50fb9925a8038698a26eaf0136d3267e662888b9468. 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/ES5088603859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8157b416e2d77c369f02dc5b6b801c8a333c09e2cc65963ae48092902c337a. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ES5088803847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b16b0ce27e397d83ee99717b62cf8c09b9aa5823cd2d61e250a5981d6ce159. 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/ES5088803852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8f4e89ccb2fa8a11377def1bc398532e891df791ee69c3b2bd142032f29ee1. 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/ES5088803890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c45057170d67ab8ffc6d68409b901bd83c77069ab0e3c13d3e66f664386669. 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/ES5089003878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb6e9164cb3c03e4784a36c0271ff29df3925317c76c12e4690164592772c0e. 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/ES5080700510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437602f0531f11d000bcf55e6d2490306652617a31e17ee611caa27b858ac54a. 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/ES5080700516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6293f22d709d9cf53439a054494b3caafaf3196292836e7a726607f6bfc2dd6. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ES5110002821.
Grandes Exitos y Otras Terapias de Grupo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5d2b83e8b7baec96242aa9c3658431363d260240f6936ef70e3540b4ec4372. 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/ES5110002816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2054fc84648405a8edd197be7aa36174a1bfebf57427ac26d773ec0b1bc48f16. 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/ES5088703839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ff65e747a794e414ec884b0378a81a2cf58f790c66337dd3424acb2609128e. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/ES5089003871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6293f22d709d9cf53439a054494b3caafaf3196292836e7a726607f6bfc2dd6. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/ES5110002821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ba0851c85298dbe5dbb50fb9925a8038698a26eaf0136d3267e662888b9468. 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/ES5088603859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522ab8900f8a1e931f917b83d2fc3d66fc4968e24fa32911251f6be821322d42. 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/ES5088703842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951f59debeb50da7008b2fb35e313d83221756871b38d0331191aad26fd73e54. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES6341600337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d37ce1c2616dbd8e6366ecdcac9172870138898edf9a13dac27778e5ed05bb. 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/ES6341600340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d15f41d74be8b0deac8629320e31d6a59b0e45272228135bd1e5f1ccdfb320e. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ES6341600341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6787edb343cbd5ca4fdff393659fceadc305d1b500e0719acbb77725ed4f0b72. 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/ES6341600342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2380537cdc3bac2ecc7faa81d46a4492445cb9445f37d8fb26a052f47981e2e. 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/ES6341600349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384c82990de83500f53be1022fe50eee5e2ba1204eb816f8afaaf550171f155e. 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/ES6341700099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dd4565557a2fb4d7fb6d1c144e1490f9810a58e0d0857ae7b356b22e195dfc. 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/ES93G1700089.
Todos sus grandes éxitos con Marta Sánchez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5d2b83e8b7baec96242aa9c3658431363d260240f6936ef70e3540b4ec4372. 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/ES5110002816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2054fc84648405a8edd197be7aa36174a1bfebf57427ac26d773ec0b1bc48f16. 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/ES5088703839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ba0851c85298dbe5dbb50fb9925a8038698a26eaf0136d3267e662888b9468. 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/ES5088603859.