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 0x020f77c8fdfd9aae94b75181251b4fe37fdbc66853ac1723d987283b593eac49. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d92b010b-f438-43a5-a152-057c25c3b5c7.json and https://artists.proofprofile.net/proofs/artist/d92b010b-f438-43a5-a152-057c25c3b5c7.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 0x2209819330f7e0d386c1d5e23c394589e29126d82de37d4b7c7189e38531c455. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QZHNB2499233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25977d13b07f0fc8b84a7333fd8b0a07280c2f426afcc21ab37ddfcf7328cf2f. 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/ITF251300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996644a4eb88e276423fc3a74196dd1c95e82c4cb6597c343c60ca17a6b61fe9. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TCACP1658822.
Envidioso Remix (feat. Atomic, Quimico, Fuego, Black Point, Paramba & Mr Saik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa275659153a15898beb6fafc1c74d72ae4a258346633a2b313788bb4386dfbff. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZTB52383659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae67cfc7e08ff102d66afa58ab895e6eb97de9eb3c26d716f0b974fd88658d1. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZTB52373619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7147a047d530c38561b9662c306de5d6283461159d48accc266ab7a0b1608cc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN72420145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed650b647d7978a5146b7639b33ada6c334145fb40ec66eb546433992241e24a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZHN72408486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0ff9f24d590887d7c6d47560d4c40c5dec4e0f96c00555c54721339fd4a4c1. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZHN82457784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa7cb74d097e03b513811cbc5693cdcffeff9138a037489e623b60e16b4bbc8. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:01:15Z), 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/QZHN72460844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d069cb97691b9753c8f47e0da61aa0a3dbfe691c7116003fd942017449a2d0c. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QM4TW2034271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a048621df08578093152bffcf2e95e05853b1346ea10ec7869b0424a8891e94. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:43:35Z), 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/QZHN72462739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5312ccd220c8ff030624de9be0bd65a7d4b38ce5aa0f52c10452a219532525. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZK6Q2482169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab50e7aec94b95c86b473dead238186101b852f14d138d350cd5319f3420a76. 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/QZHNA2491131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719ee70312bda2246df014d8e81a2ce2bac9dff7b0166cd28c9d628b1e6a5fa0. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/TCAID2408023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc353235b3617552890799fc3d0340a723157621a36145ee82736cd388939544e. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZHNC2401247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a6fb1f49924d9c809ef5412f391cb414edb7c2211401e2d3837d502a93fee8. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZK6Q2482439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb217e3dda9213800397f387c0c77fd4ca84f3224c595c084bb6f6d8bb253c38. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZK6Q2483785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37d717132026ed20eb2e416fa3f174d495e81ae2149bc4e4091af7836c0cc23. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAID2400370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd80f2bdd371d2ba6dd82d46a58d9fbe9ad3e6aa85a1c28720ea1d160e9182e. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZNWV2454503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90b5587c2e4a15b114a6bd0b43d506b72a6f444f1c2a76f1f48cd95485721ba. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZNWZ2422853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895480066cf7f23927b6c6b0d7fd6a50ff8e28880b6a628f6bf47d4f03458576. 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/QZRP52465763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220b0b82333979d879944b7c43aff4977268dcee63cb57b6c21da94bd5ec7d97. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZRP42451133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fb225637a2a1ff61d9586652b982769177bc33681ffc2a1cf1052ea6107f2b. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZRP52462746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b63cc88b97bcb0b3366daba7461766a7b354b49716dbc8fb11281855ef0aa2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZRP42492918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b9a8c2d222d5626c2fd13a7e079f582a0cf43e9a0dc80d4236419dd226256c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZTAT2469130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c3c280fcd48c051dd5a553e69c0266837189c95c9e4082145f1e6dbd4917a2. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZTB62451457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb507e4a29916ac89a7b0068f6048c50975182edf06d5605f9cde32d099c4bf2f. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZWFJ2425687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89728bdec51f72cdba38f4cc25827b700c2d50632df52921da7aecb6d93ede72. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAIR2492698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55aeaf70381d15f635707a2d4189f3f271ea442a9697cc864ec233738a1fb4df. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZZ7V2408216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4904af551b0a20ff81589e2ed632ac83bd5cdcb5e628ea7b9ac30ab71013ace3. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QT6E92524229.
I Love Urbano 2011 (Dembow - Mambo - Reggaeton - Merengue Urbano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b306da632c2794ff6bdea3b039a7b469a0e9af135ee9971ea3da6e481d57212. 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/ITF251000041.