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 0x5316790000de5dc566230e8940c4473bf717882534785a2fdc56f64624e36587. 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/2dc2c758-8208-45f7-9320-cc8868f9420c.json and https://artists.proofprofile.net/proofs/artist/2dc2c758-8208-45f7-9320-cc8868f9420c.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 0x5deef15ad1f61bb8c7927635730df8519bcdced5aef482fa2935fff7c66b5bad. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DGA0Q2303566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169e227c8e1ec29a79243758ea5d3f9ac1576771368dc15025d0a67ea4749c69. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DGA0Q2303567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35de0c6bb4f6347cfa1a757eae4bf98782c454df9765077957d558759bba244. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ES71G1861638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7edfc371cc22f22dc7ee38ecc9ac5ece348db717a8e5a4df9a4b884fdc6111. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ES71G1861640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8faf2d0d4e979daad118ca957e6efccd6ad162b9ed3708b71b80b46072a5ce84. 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/ES71G1861643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8223a81af2cbe1ad53748410fada276de98743bf63ed95fe904ebc3a9d5198cf. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ES71G1861628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94489ff3384a61bfacc2ded3930a29477b395abfae821659ad752f81249802a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES71G1861630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5184b68a7d3e013b7e7ac638afd49820e7a7ddf0de0c05b960b42dce3004cf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES71G1861632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820c41f09cf09b9e8aea1394086327b77d32d37992a5a9934414f6cbcc22a592. 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/ES71G1861634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaef2ddf9dda81c95a4035364a9333eeb6b26e9dd0ea1608b7e6253a24e89d6c. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ES71G1861635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417717a462ff04d5be7db30bc2d57ac96d5b19f109e0553b38434700c374affc. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/ES71G1861636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2160b02a85ef7b07cdb7d580fb704b75ecbebaf5834f0301d80dae678ae2017c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES71G1861637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791938538b35d409d77407049b98021d8e88bddda868fb298107147014d276a5. 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/ES71G1861639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0346cb5a1c5a4197ce5dd3922ddfd3c5f1c073b08d43e6a2ff2a53f88f4cafb5. Chain 2 (Bitcoin): anchored in block 957661 (2026-07-12T05:37:10Z), 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/ES71G1861641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef7a70071597fe57d60e92496480d95e729deb5c89f3598b25f000c659723e2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES71G1861642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ef2bdaac2538eb776106b40cfedbd10d8e984279d3d6443569417eaf61fd84. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ES71G1861644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e2a65c92ae076a5180a7976e023609e02518a0d15077d2b2c0ff05eea540f4. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/ES71G1861645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb57c78e1d8f440698e0ad5418e03f50a727b8094d1fd3c154ffd8a786cdce0. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ES71G1861646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaffc3227ad0bc6f2fd0587a52759ba4af7557b2b6525bd1c3f307fa01238515. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/ES71G1861647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8877eb205e7bc0c279902969285b4c8b70ea2543dad343a022f31407ccedd6b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES71G1861666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9707eaa00c352a67461a6118a4dae385cf39566b24cbad204f13569672cacf. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES71G1861667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c00894d8a876473831bd2dd72c0f811cdb68bf37c49e13fe28a93046c53aaf. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/ES71G1861668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde98c937c3fca3fd3ec0611f4ddf0bfc6b0922aba8bb42eedfeb638d08dd05c7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ES71G1861669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f37533f25a42ad30a363e805b7744593d381cf326e7bba7c6dae4d617886bd6. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/ES71G1861671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9793f59a9b8c7eab24ebc3911d457c6336c3047d11db42662f93000bddefa473. 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/ES71G1861672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639393f32695ce7b49c3e37eecce2b3a9c765e86d4a84b597d1f8f7507dea03b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ES71G1861673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd69b425df6f8f5cb86d0cae1a194e674ec0f2d76946994da0daffeb01d0e4b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ES71G1861677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1934ffa98e0987cafe34057f027d78936d6fe550c725ef5ceaffc30e009d8d. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ES71G1861678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5280e8c4bf9b2363093dbea7158f6a22a2ffe8ba9c01dd722b0024766ddb9dd7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/ES71G1861679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ec10297adc581558ad4d4f908da80c900931ec17a7983e496a66f4415e95d2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES71G1861680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39de3d6f33a9c2cb2b60d1cbc97301a0e18475e5b7924a50c83e270999653afc. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ES71G1861683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dca6ba3e96bdbf6bc0b5a2780131c9c144de73439e832ba4d16186da5966d5c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES71G1861684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a68eb730fc20073e0ce2c0c7f4dccb8b984de1a3c8334b9cdf2e2f72bda378. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/ES71G1861685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf26a3915009e1f9121ecaef932809f89e3e3ab951c6134bca9e26d0aeb2a0a9. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/ES71G1861686.
Lo Mejor del Folklore Latínoamerícano: Artistas de America
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b00052dfade62c25295eb4b32a61d9bb39bb7bf22b61b26c4f16007524e8af. 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/QMFMF2143948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7fddf3f98aa1fb669a9ab225e70c5c8bb61a44c668b1419b07ff1b5fa0ecd0. 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/ES71G1820978.