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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7873f1c57ccbb91a3a27e771c86a72bfac499a6a5632c8bd98be26f689b696e8. 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/a67726eb-deb6-47db-b15d-6d0d9ce145af.json and https://artists.proofprofile.net/proofs/artist/a67726eb-deb6-47db-b15d-6d0d9ce145af.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87f0040a0ba6aef60c398bd5dc23cfbae8189f56ff67cf160fa56b0a45a1892. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZNJX2488325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6e4ad6daaa7c185cdc58cfe9f7eda148a9f3405e03b798a1b442b2cb56ad29. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZNJX2488326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425838e949b86a4427e97884125c8b55cc3e367cf94692e923f28212c7bc3963. 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/QZNJX2488327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122e6c109cb347ffc7eaeacf953bc08c1a85f635804399d52a67381ac0bf141e. 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/QZNJX2488328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484fd8303bb2bfa3af3e606f3d2c9558acbac9f17f2b28c3ef56b8de5f08697f. 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/QZNJX2488329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8220535cebd253eed4dd46c0bc316dbe4a5dcffa2f342dc64083f0614bfb1e18. 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/QZNJX2488330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610738e29d5417cd131b7a2cdb6a6bf61ce4820bf011b54925f369ea04cf4f23. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZNJX2488331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1b32095ccf6d490e3d39be919bdedad189122fc0e67e040d6790047f72252e. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QZW9L2393906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabfd4cbc80bc95a30f0065a3aa0e99121785a68930f88dde14db209b220826a. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZW9L2393907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8541493516890cc31372033946cefba3f5208bb27fc5675ad19bb6958163024. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZW9L2393908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079926c311691425f99a93e76c5201b95262fd4684a7c845c3ca76bbd8e11ce5. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZW9L2393909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ee3dbf9078d49abcf2e9d5bb4d81dad6fbcd34051fce7c552442f2ca49232f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZW9L2393910.
Tu Tuviste la Culpa y el Puente Roto - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bca9cd450c8422c59da86ee40924f08cfae4b686632a5aeeebfcace7672967. 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/QZW9L2393911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db4a76badf7e1535660ef350650569017b794b58a09a611e8d8bef7cf97b363. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZW9L2393912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a84d53caf23b6a7ec7b0280762016de817b1678790e37cfcd9de6759cf1ea0d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZK6F2351389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff48280fdf58f72b6fb4b7c2c64e97198bbde30c48e7126651f4ae95b531e903. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZK6F2351390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1661ef3c9be9433b859786f609b6645be44c436fc156d0bd4f1d0a5ff9cf989. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZK6F2351394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe061cc4a1d75ae555c7380ef2607599f18dc525d4613e7a51d2659a391b556ce. 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/QZNJY2417881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb62c540c6260d9abbfca33dbda1e34729e760ecb412bc3ff7b3f5a5bc475cbf. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZW9M2306945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ad6665f06dc060471b5f49960d537c8fcc01abe0f4e766b8770c6493952d4a. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZW9M2306941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab1ecc69997e7f5e20ae3b1cdbcb38a0632a64ae41252d2487b55b810b85db1. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/QZW9M2306944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583450959cc11a2fe3f0205a72b92387561b5b427e2afb09dae76dff65e97435. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZW9M2306942.
Quien Soy Yo para Decir Que No - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86006fe1436dd9b0c6f7995121cff799b7c5951e83812f61633b090bde8fc2e3. 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/QZW9M2306943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6233b9130f971d01740c17f5f609d0751aedec1b5df64c1f2a5640f01af77208. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZW9M2306940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a4ab74945012359c976223880d12678925fbd8bcd53a863787d0d8234f1c30. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZDA42339780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2efde884270eb573f64a91f566fc99682598e8e8825ca7897b6580ce46104f71. 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/QZDA42339781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764d316214655088de4c8904f5fbcb0de5388d04fca4a870604cd45e79bb6189. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZDA42339782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aec83febe7dfeeb236ed2dcb5aa05c9606b6244a5e5fe36de4699e7511d02a8. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/QZDA42339783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecae9d3ba3f0441d8fc54f9461edb347e489a469316a12103b6955cb59a71a5. 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/QZDA42339784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5842f2cea9beca739f7910b7248889e979e66718a6e9e8f389708365e8cc52b3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTAZ2224572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e57cd6a65fe77cbf8055e23aa620ecb7f783325fef53a00713626dc8327c1c0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTAZ2224573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86be3d34ba2330c0925fb99e603e7fc42eb768def0f73ccb8d1152842b537e2. 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/QZTAZ2224574.
QUE NO SE APAGUE LA LUMBRE - EN VIVO CON BANDA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2934decac5eb0d02b274a87eb539d2f9a766b402fd7d8206fb9e59956c52abf1. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QZTAZ2224575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cea58138165e45c9f32550affc912788d360ad23ed84e0a846e0cf530a8d040. 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/QZTAZ2224576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe159a3fc6febed8beeae049604e914ac537ab0f743d5099d66f648705a2d6bf. 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/QZTAZ2224577.