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 0x56c02ed9cfc3d2a57ffa5e86a3da08b92f73c9e45297a0cdb7633b9f65d9c8fe. 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/1fff72cf-f009-4c72-8423-54756e0e1bb1.json and https://artists.proofprofile.net/proofs/artist/1fff72cf-f009-4c72-8423-54756e0e1bb1.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 0x7251437ab10be2856ae523890e29191e441a86494be2bb743eef834c9a4bec3a. 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/QZDQH1828773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0b3204f0a518bbcaa60714d226501e9b36d5d95824a91f57ccb0d6c4df0350. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDQH1828775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbecab573cae71ceb52e5bb7ba669b0b507952470ddc968e19ab0a672a7f4bf. 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/QZDQH1828780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f06890b5df38431ece6a0e6c93d16154b0e465e4c3d6cdbad5409bb67707556. 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/QZDQH1828781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3977ab6f92d3983ded7be482c5e576966f6327657224a41c21b19b6e5955495f. 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/QZDQH1828811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b5d1bb3a70de4bffeaa4f9ba88edd1cc943391812dcac16e849a54bdcffdbd. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZDQH1828812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44567cbd73e1f7a6ad240b92482e2d0a3b516126826d4b4e4701317d6eae40ed. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZDQH1828813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea1fa1e2ba0be0a2e6993392f5c57df830f8d5469f65acc3bfa5b69813c3b3c. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:09:51Z), 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/QZDQH1828819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d66c45108ca4e82e57f1e1b62eae57c147bcc5119509f04bd78043e05c5fd3a. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:32:19Z), 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/QZDQH1828823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb1d055e4e24d1f43808bbf5035a62b54a73cf3536849d06edb29c2fb4c935a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:11:40Z), 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/QZDQH1828825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2902d725e51c57355e4ed2939f1839bd79df10f62ed69ce7a3e40b52d639331d. 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/QZDQH1828827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac555a8d468e7d1abe76c6ee7f4bae5bf01d25f72c7304a89d7406c3971a4ec. 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/QZDQH1828829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea7a96835e5bca8a5e11e80f9d2d716d868c2670ee6423653612917cf2cd989. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:44:04Z), 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/QZDQH1828754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8530b76f58a13c2896d0c9f26741f7f2c2001a6fe98db922e66e34544f86197. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZDQH1828756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd0c2ec4a00458aa92187425c37e23f1b24f5d69e9f7fac9f967831e9ea3c06. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDQH1828759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363ad411deb4341bd6e0a46e2ae476f977a320e1355eba0135591df22844076c. Chain 2 (Bitcoin): anchored in block 957566 (2026-07-11T12:26:02Z), 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/QZDQH1828763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0b6a587128c08aa55de14014d182a709528e37b99ecfd73ca48b0ca035e980. 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/QZDQH1828730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933bfa6cd6d3f9386dd9e95155bc60f79e0b1c605ea894455b907607b7ac4d22. 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/QZDQH1828735.
Popurri de las Marías Cristinas (Norteño)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a57650ee683a0deaba5290dc78fba50b6dad57753c79c46fd82fdec0bfac399. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZDQH1828737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362e1c6f975b4179737d86728505cd7874a6edc74e284183b29848526926a906. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:44:11Z), 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/QZDQH1828739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebfd80b77eaf96adf98a08f634da9a99264cd10f9965ba8e4702b9f9b7ef657. 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/QZDQH1828745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245ea6800dc04b309a080c0ffa5bdabeb30ac01f60fec9e8414918eeb75569dc. 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/QZDQH1828710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49de639f01ea3d1a0be6cf540cd1c8a69b4b7f3b796f918d6ee6c4297b701a30. 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/QZDQH1828711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc527c70f3288c51925e0a52ec9199139c0c8a7fcf7f291bf7377553739f98634. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZDQH2202404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444319961fdf85cccd7c830dc15f0ccc65546f2f0e850ef735dcc14dc894670f. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:38:57Z), 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/QZDQH2202405.
Corazon De Texas/La Rufalina/Los Tiempos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf728a3baabfa870a44a51e256080892631fd1f16afaa9fec3573c405d710e022. 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/QZDQH2202407.
La Capsula/Y No Me Lo Das/Estas Como Quieres
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a5d64472572ebf91a6e2168438e8f9ddeddac75ab05750d06dc4671f9b879e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZDQH2202408.