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 0xa712b858392dc8bad1373963426a9d5c00f50f7569fd46a97b6b1eb1154d300b. 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/a8ba3f5e-79d7-4a58-9eda-0759c96d84b1.json and https://artists.proofprofile.net/proofs/artist/a8ba3f5e-79d7-4a58-9eda-0759c96d84b1.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 0xe16536c98ecc08e581c26902090b0bd26b2278a5a4577c1fb6a53c7713f616b9. 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/QZTAZ2487945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28166e9ec5a48c93ac356de636222b0e44a41823235384c3e76c767008fe1c6e. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZTAZ2487947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7549bbdab94c331d1ce4a3778ef5e9ecea4a530157ac62d8d050b5e5183d0576. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZTAZ2487948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ec222d4a5f5ce19cca693eaf54a1c80ea982ef3aecdf7f4e3cf5fdf58d001d. 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/QZTAZ2487952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c29fba866e3c6ef41b328a53eae24b31e135cf2e84f2a341a5fe53936b557f3. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZTAZ2487953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50595c4aa69a192799d1a4105b111041f532111af582cd677bb63bb6aa349f3. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZTAZ2487954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b1a00eece6bc6cbeb6e91ab4c4dc014fc68a7d7782a0042023cd034f2013dc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:06:22Z), 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/QZTAZ2487854.
Como Voy a Olvidarte / El Teléfono / Vagabundo, Borracho y Loco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d47f0913714c655ea11246d383e175c6096e87d6c322c48f24de7e555e5de1. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZTAZ2491821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024a7ece9929194a4ab5954da6636e9286a6eaf15a49f7b084ecaee21ee303f1. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:18:07Z), 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/QZTAZ2483893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e68ace5c715e1b41d3b6ed3a423c1af8210983a841b67ad79c307e7a9143ec6. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:02:47Z), 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/QZPLR2442849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ac6b1a74ecd6beb0db44f9ed2dc285b2bc7438cc0c35ffab9bec8a516fe1ef. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZPLR2447503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb6e2d24b645c15949ce50b2e7bc9b49ae84a9aed473241ed043f47ad17ff46. 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/QZK6G2412214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2988791a79f56398c309087f9a80f245ac1c4c0b5b6ab3e3973ca97dccd5cd. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:16:00Z), 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/QZK6J2478278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa735fe660a4b3645e1b82773d59b36218a41037ca2b8b425f2b0f433602f4e1c. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZTAZ2474633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fddafbe3bf4e996ac7655778ed27227be634a5e1d7eb550282b2112a2f584b. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6H2479277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92ef36817110cf025ba39e2ee4c71706ee4ef5564aeae39f5a4397c2f659416. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZTB42488193.
Cómo Voy a Olvidarte / El Teléfono / Ella Se Fue - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe770fd86b9201c72b50c974c2c6b792d202396d27a90f384aaae249412dba8c7. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:19:46Z), 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/QZTB42488196.
Pastorcita / Tarjetita de Invitación / La Plantita / Cariñito - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1350efa94c6245c6979d0f561514d9d0e61bf3d13b04ab66f0f6020cbf0ee64d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZTB42488197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa858f339b9d1559fd8e1a466d2ce54e7f7161534971c65c926d3a9d7d9058968. 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/QZTB42488198.
Me Vas a Extrañar / Que Vas a Hacer / Masoquista - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3826064a7d2674c05b01d4464e69dc3af94d20edeb139827ee31120082173a2. 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/QZTB42488201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0158ea9c0d5478fc98082298b63d52b882329baa968c7212ba04962d774a4cea. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZTB42488202.
Dile / Compárame / Chica Vacilona - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9c27f18f0df5e4d6e28fd3ff9139208cfac7067915b2e4991d79b88126eb98. 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/QZTB42488204.
Buscaré Otro Querer / Sé Que No Vendrás - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8dafb5572f4d1c3be348686993d877b57d86129ffe72475447f26a829e801c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:04:47Z), 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/QZTB42488192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe1eb4b23f77081ee6776069b4fcd73d1ac480ca50c079494157addbabb7746. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZTB42488195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1350efa94c6245c6979d0f561514d9d0e61bf3d13b04ab66f0f6020cbf0ee64d. 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/QZTB42488197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa858f339b9d1559fd8e1a466d2ce54e7f7161534971c65c926d3a9d7d9058968. 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/QZTB42488198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb046bbf24099eed5b13433dcb5cb992448d3f1f0b19d877957c973243cd4b045. 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/QZTB42488199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9c27f18f0df5e4d6e28fd3ff9139208cfac7067915b2e4991d79b88126eb98. 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/QZTB42488204.
Falsa Mujer / Cuéntame Como Te Va / Dos Más
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5715484e039206bb46f5383de8c518a9adaeb6da58e8221a8a2c999365dacef5. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6J2478126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1887ee0d27c31ed3bbd066161e0fa56d56b85130616d391e01a5638ec3e8eea. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:19:49Z), 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/QZTAZ2481169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2af94341ede4a4e652d687778100f506c15045ca269b102a72878395ea1dc5f. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:59:27Z), 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/QZK6G2402175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe038d29910781d8b543a7da5f12c473e667e46b4a13571971e8ae84f75c10df7. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZFZ22579783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf8b42e937aec1778802149c645ed6313d6fbb48afe51f66db48fa6db0cd70f. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZWFX2542194.