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 0xf5d0b439e86a3a02803cb00ca540677f04d1f042633502135ef19a05527b7109. 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/d96ff9c4-3e7f-457e-a2a9-a628b0fc81a8.json and https://artists.proofprofile.net/proofs/artist/d96ff9c4-3e7f-457e-a2a9-a628b0fc81a8.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 0x2aa9f924fde5b8dbc9e9765d8425bfd897e91d1b4f42a8d27f59d5f06a2621b8. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRX452155082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4623ba582df51f40408723c52ed5c32cbd55f2f82d478d10e76601ce8deda5e8. 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/FRX452155084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b94c1dc9109d1ad974a1f12f049e8fe065ad24a5c00b8b47301476da3dcd3b0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRX452155085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be1fb4d2dd87eecf07057155da6918a6f11606d0bb718aa2e77212ebb3e04a4. 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/DGA072189065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0fbd8559d005252e39dc864d0d63066d8f752029a36ad59ca05d551bfdea62. 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/FRX452155087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50dee8085a07eceeba857f5d3aa92f6e18572f2cc75833b6c4ea5d75aecf79f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR59R2113200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d4666d444fa6f9e1077f9caff1ea2a29ed2dccb0d400381cfe7908e66d01b2. 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/FRX202108620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfd0b758fd2145ea9d3241a7b15626b44c68f533467f1f44cbf00be6ffab572. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX872002285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d4666d444fa6f9e1077f9caff1ea2a29ed2dccb0d400381cfe7908e66d01b2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX202108620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50dee8085a07eceeba857f5d3aa92f6e18572f2cc75833b6c4ea5d75aecf79f. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/FR59R2113200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be1fb4d2dd87eecf07057155da6918a6f11606d0bb718aa2e77212ebb3e04a4. 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/DGA072189065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfd0b758fd2145ea9d3241a7b15626b44c68f533467f1f44cbf00be6ffab572. 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/FRX872002285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080dedacc206fbba45be6269ec418056d2f8bd0cfd6ec64cef0c140fb8214b2f. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/TCAEI1968174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddd94bd5beea4f26973a920083a911873f9b07a377ec44d311f051d2a7bdce3. 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/TCAEE1993655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216cbfdf50777046bbc6f6ba8b04500d72c1b77952f0aae7ceba6bb537801876. 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/ITUM71600603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb208b0e15e2d648d64973c76cc1a27871ebbcd725cba4e8e1f78f07bddde8f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITUM71600523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd1db7166dfab5d2506ba19f38080279c31881ccc4dcbf35e546fd24b126df5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITUM71600533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca370bc09f2f6f5ed514042ac16ebcf713818efed997e2fdcd956cf6c7cbeec. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITUM71600524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc618770a74979fb3d8dfe95be5b568398e15f0f11acf75503f5a24b8b3576275. 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/ITUM71600525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdade02fb7442a5874232ea1cfbfd76df2fd540f380da4011ed796334f24b4ac5. 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/ITUM71600534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb815bde1cb916c57cd22056101dbbf33c4430c2787f0e9f0c10686486e1a594c. 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/ITUM71600526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdae017d9a71163d591f49d67a477f89cca24c46e7866f743cb46ea75d7bd4b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITUM71600535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad99cad70cb7abff5a7ba1287cbabc91557c4f64b67ea7ba28d6051c59d6c05. 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/ITUM71600527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4422f854939a843ef5c70893492edc4b2ec9570cbdb2cac274cafbadb15f62e1. 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/ITUM71600528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643b3f573ab6101812849143c53be2bfde635d8c50a16f986ae3370abe9adbde. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITUM71600529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da03d3bde066bea2653e95a8337b92782e8bbca0d5756a71b28b8fe2876874a. 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/ITUM71600530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798cb30b17728b2a468477e897be41d791e9bef9be0ebd2c535092a497a01f8e. 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/ITUM71600531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea279f98befcc2c4eec4308f88a5c4e5111fea8f8543596dde842b323e97ddf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITUM71600532.
Lo sanno i veri (intro) - prod. by Davide Ice (feat. Dj Telaviv)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abd0254511c91f6c9d662d8800c270301c005c196e3dcd276a009e813636621. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB261500620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf449fb14be7c5761b337113398020c722d75bbee50af84bbc75b27c02193a4a6. 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/ITB261500630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe571adc632ebca927b18bea96e49de49145258f7716d8599caa4eb7bf7f67d57. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITB261500640.
13 anni - prod. by Don Joe (feat. Bassi Maestro, Giso e Clark P.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95048c26b77c55800e5c3113fe6bd7873bbf32c9810f1244c60d9370e5213f0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITB261500650.
B.Rex Bestie - prod. by Sick Luke (feat. Lazza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f284f4c25635e5318f3630f01354160163dd5e02e523db761f76bb16a34176a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITB261500660.
Racai status - prod. by Mondo Marcio (feat. Vacca e Jamil)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e7d84f8bd1144a65c47f23f08d0b9f645985bfb4e9be1737514d0ca493e4b9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB261500670.
10 comandamenti - prod. by Pk (feat. Gemitaiz & Madman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b5e810cf701a3dc02461d0a4de3c57f1bd6e71ec2e8d4d6927e0f4780d356b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB261500680.
Champions - prod. by 2nd Roof Music (feat. Clementino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d315537f9f3e9dcc70bec13097a3e35f8430131c4891c5e2e825c117cf40799. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITB261500690.
Di tutti i colori - prod. by Pk (feat. Jake La Furia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166221df6fff10a47fadb41bc3e74cc8109afdc27fb607a46481aed1b29992ac. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB261500700.
Martin Luther King - prod. by Small White (feat. Luchè)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a8166b92d8f6d2b70a47e6a89d0f21f09f949cfb690433af18627cb1748400. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB261500710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c9e54c11e7a1df0e43032413512976646e84fb25004bed67aebaee4164ad10. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB261500720.
Casinò - prod. by 2nd Roof Music (feat. Maruego)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d94898b4714347f7a57cf2fe7d093cd30d45a9d62a2c4b89a5d424ba5ff835. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB261500730.
Colpo di fulmine (outro) - prod. by Fritz Da Cat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9819563d298097f3d8661ea2ebeeff5870d821d91cf980a21fe2ed37ef7bd32b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB261500740.