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 0xca773272497df97da066c2a0501a9a2dbef1c8def5ca174906d27d8cd2bd0821. 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/61fd9337-4954-40b4-89c1-be6d75ddf77c.json and https://artists.proofprofile.net/proofs/artist/61fd9337-4954-40b4-89c1-be6d75ddf77c.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 0x8a3a3948613abc9dc04c865589c53dd1f68506c422453b76a19e854a540d894b. 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/ES36G1250071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bb90c1cf17b5fa5d121cf419a6ce2f4ce6cca6693d68997e89a0374cdf60f2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES36G1250079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3249303d150d15b1074a53e1f8fa8eec160ef249faff09863bfd2da80bb96058. 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/ES36G1250711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddb22f87995f2161235b4b1e1c4ca5c491a744c02c6873cf24e71e68ceeae74. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DEH741805511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dffa31d027773b9ab3ad106f6a105d931a23f91d9d07da8c18575f034b26da. 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/ESD011300055.
You Can't Stop the Beat (feat. Jamie Scott)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3735fef5936b2b991d580cde5a28f933cece0f51b4eb69f77f9088da0e7c89c1. 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/ES5081200362.
Keep Running the Melody (feat. Kreesha Turner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d8425ab9646289e54138e528affd6bed30f8f14029996685ca8255372aa262. 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/ES5081200175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157d99fcdfa52a419d2f08c5fc2afe12a83a5508b75d82290c6b50a1bf4ef787. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/ES5081300461.
Dance Me To The End Of Love - Mihalis Safras Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe847d3115c2d28a4c9ef7ac997a622e793721daed89767726b47a2fd80ad43b7. 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/GBHFW1000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec3e6f5745a978ef83dc77c9220ea3892a8891cb77eb0b2aa2936ca8dd850a5. 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/GBHFW1000048.
Lucky Star (feat. Ron Carroll) - Kolombo 2010 Unreleased Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2cbfa928d1d22c01e27dce475b0f2d56f64adc3c60dcb0f0ffa2c780c74a2d. 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/GBHFW1000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1a2f3296443c38ac8b1634c619d5903ae3033d7867058fef55b5e29c86eb49. 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/DEDL80901490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf242c97a338adde171e21019bf5d33ec579094ad05c0dae4f8b280774c6441b8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ITA060900473.
Forget The World - Ismael Rivas Factomania Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec44eccc481eb444b8e175f281f692da9dff5ca79bd8424c186a74d8f3df9eab. 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/GBHFW1000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9a3cc84323c980a3eaefcfc1abc7a41e6c0dff6bd7c4fdb94d097f9a405618. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEH742418934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88411b3ec089f1c6dc802d6104fdaa67fa42c88babb13aa9680177fc6721eff. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QM4TW2495434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e18be89df1508e414e52b167dc3c2f96dc1e541f7e93f7fdf4622efc933de89. 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/QM4TW2495435.
Arabic Nights (Angelo Ferreri Remix) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6958947bd5fab738ac4ce2372521f2a8614e9db12f47864c49090433523878ef. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/UKU332400345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe442637d2db9b9124919e7c3a421eabc1056c2a927e8bc14bdda8195f3399606. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/UKR6V2410450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7f839fc8187ae4717c9a99deab09d96775bbcc97600c11cf998275bc56d0ff. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DEL022330034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3208b562be4d09212a0ba572f0ac72fce6965337727bd01b16f998eec6255251. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QMFMF2369804.
One More Drink - Wally Lopez La Factoria Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c599c0c052482dad16078b987e13e39d8b225ee5e2aaca49160ebfc58b2260. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QM4TW2440468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3581b2c3850eb0ee1c05cd79ce1e7f1751ca2cf647b98760e16bde2c05fc55. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DEH742401688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a3aceaa8f7c4a0096870d362e11b0b412955ab334436d26d10d15d4c5e81c9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QMFMG2333781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b435d3fb69839d6c6356acd16e308932a0cf8f1ed524511f375d08a4b20704a. 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/DEH742400793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bff0b3d7aead3eeaa3eb0ff60e5abb4a9aeadc6f4a524fe6ce1bce3cc391b6. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USA9E2401425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbacc54feb807cf9d2e9493b555c538db33b7b463286da049d2d4e3c10903be. 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/DEH742326918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77968b822385c1530a038a65d07cb9e9201aea341b9587ce7a60adfa48efdac. 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/DEH742324957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440d70a0bfa50ffea27aa244b8f2e3d982230c7518a2116e857bd63a86a4c963. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEH742316978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e1a82d677cd15e22ac0b9a7e93cc03a1c42e15b5b90c291cb136507cf86306. 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/UKU332300180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb0e0129230bb5144c42ca7cccaf615061b93d4d1793f4c4c9bfddbf31946a4. 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/UKU332300179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397eaad02e53b1d4e5efc801c141456cd62bc9ea0b6f4dfa9a8c6c7d0b366776. 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/DEH742300568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4a49855a05bd38acc491fe2315a94122382e56cd1b03fcb2b136d4e885ea4f. 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/DEH741646142.