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 0x1ce0c3eb9a1e7297c3d348e79d22fb827acdf12db9e2e295fd1ccdfdcec2b496. 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/4ebcf520-aeed-4cee-82d6-555d24ebade0.json and https://artists.proofprofile.net/proofs/artist/4ebcf520-aeed-4cee-82d6-555d24ebade0.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 0x4fdac6f5ce1b2339a408e8efbde19e004514c169df68be0718198c7dce5cd611. 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/ZZOPM2237007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d273364f259a506522aea35b4b1d03671256d1044382afc1bd7a64b5b13828c. 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/NLQ8D2000569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139226dce6a11e7276f093c90ffb0f0e4a004ff91d13e89050f3bca9d82834b3. 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/FR59R2419938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddecc2aaa4575558b8f92c0c9264d5fa64bf1e5e2e354819d30061b67648a6db. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/UKKGA2000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6f5b015b3e799d2b1d9d8c98b5eb21e284bc9463a4771d70f62db7ebdb5a50. 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/BE5KW2400535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4194dd3e8ce1fa8200de23f474da52f4d97bec3cfa6b1ad7770bd1b3005883. 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/FR10S2480038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821585df9894d6078a43be3295747336db322ef76d74500ef5ccf21ac0a59d80. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DGA052374558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97acc5aa50b19d818b89d99d2c2418d0d1cd170a98727469ee7ee00703bf9e4b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRX452392206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803c08e82a98ff04e3b9d4fab45471246476c023f9e7f744c4e2a36977dc22d3. 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/FRX282343841.
La Tarde (Los Padres & CVT MVNSION Remix)
La Tarde - Los Padres & CVT MVNSION Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97389d48d20f05f79e5fafb57d06c14f40097ca16fa47d2cf691627725297fb4. 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/QMBZ92284863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004116c107bb808ee261c2822751f51a5998f420ca737177d36691ea7a908a37. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QMBZ92284871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1bee6bbb0c979036c2409680caee45440afdeef1e12a799f58fbcac8bcdd70. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QMBZ92284842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513f8e360217567b9836f4a572b817c308267ef4848897096f6ed8cafa5cd8fb. 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/QM6MZ2254036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8887809d3ea3bbaeeae3c6330b53dabc38608754cb39670d1ffc8f20457db6d. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/UKKGA2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e6ad0d319041af603814a246b7996e20519aa17af0307da3db1bbbe04a013a. 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/UKKGA2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7590d19905c706c07fbac0dfaf41de1f3797d07716cd2475c1e1c54aadbef0. 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/NLF712100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2853ba18d9e9e98b316b3777522defd04bd5cd16036a0137735deda8d0b26288. 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/AUKJ30800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72525fec0eef8a7e80515cf928d6d6286becb68a9e97efb98d4294fed3ecc5b. 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/QZ5FN2150572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9737f5de29c4462e5ca999d71adeba724873db8afaa63b5969668ff4d07f4216. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZ5FN2150573.
Let The Light Shine In (Crusy & Jose De Mara Remix)
Let The Light Shine In - Crusy & Jose de Mara Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779a9dff06e1568747d6a0996e6bce57596ba184e1b9f9c331ad24eeca27c872. 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/NLF712003374.
Let The Light Shine In - Crusy & Jose de Mara Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cadb60b3987e74df3a0c2cb8300b7a6a67f8254c64945ef85f9b6b200720d42. 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/NLF712003376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acec6a8edf2ecde45eab76a86404be2fc8edec949d26afc299fb1094e276db6. 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/NLF711402422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c65c7fc4faf43fcdfd84c18b611b4d982a5fce44ae71812e0a50272ced4edbb. 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/ESA011904053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa599710ca7cb9a8fcfd747266eb311dbaf6ed961b8b8719f6d3994db2cfa2fa0. 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/GBXGT1800162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f388fa96ccef6cac523e43ee209e1b3e899c01743715102b3f955967cf0d08b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USQY51769841.
Forever Mine (feat. Lil'Eddie) [The Remixes]
Forever Mine (feat. Lil'Eddie) - Dirty Ducks Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9d44565ea912de325866b99b5eb66ac41747ea6f0d449775d88107cbf6a0da. 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/GBSMU3895413.
Forever Mine (feat. Lil'Eddie) - Apollo Vice Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f4959c7fced72b15c95e3c6b20954a87913b8cc7de4d49b46fc41f63ac51d2. 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/GBSMU3895415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac7c012e46f36aba465050a31da93e1c35aece0f1df81c95cf9b7ec8b4b0a10. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/GBSMU3576685.
Breathe Again (feat. LaraJulie) (Jose De Mara & Crusy Radio Mix)
Breathe Again (Jose de Mara & Crusy Radio Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5014770f3475bc06eaa9023ce6f6ce563305512f144db00940e046a08f7874. 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/GBSMU3389892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1979b33a703402a1264fcb1a66593596fd83e18009ee74de7112b8c0abcdd8. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/GBSMU2738548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a91d463ff1eb3c159ffb19af8de1a70d55dbed10a27396d881769e6ef6b912c. 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/NLRD51509336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ba1797088105499dedbf87f47c2b805f9388c0dc0e6a33c85f0e69219d0e67. 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/ES32G1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793605e74e52b14481d65e9b880dd86fdf814380bd0c5e50fda1573039b80e04. 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/NLF712100031.
Ride - Alexander Som & Jose De Mara Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f3fe24e3d700782c8ad3c4be27259df1abb42ced2d9c521473d42452dd26f5. 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/USSD12200735.