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 0xd19baffcbe7f0c1a7687ceb072b873308b69b898c4c8716f2d3fcebcfa1ed318. 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/b7ab882f-e091-453a-8278-ce6878eb12c3.json and https://artists.proofprofile.net/proofs/artist/b7ab882f-e091-453a-8278-ce6878eb12c3.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 0x3f5a1e5c5ee9e0671bde3566c02ba2c555491ec6f64b574abdaad954ec13e9b4. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZWDE2591865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe553be27da7e6c5eddb869a5bc0f1c13c1bfa078de2149363395b7b625bb486b. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:26:08Z), 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/QM6P41551764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15b19e8fb8688fe16a7cb63f5d1f75379763fa71d73f12cf4c120bea35ee6b9. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/AEA141409171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800d1f9fa2cc3276fabc6e594091ce53180b1ab252cbd34ecc58331bbc34af82. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T22:49:27Z), 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/TCAGJ2237728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf47197440aa06be7f8b04b7d7972871640d19215550066e3ea6418567d7011. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/TCAGJ2237758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa135b22a4f764b6699b6f0086df69ca7b4eb679f62fd018d8d567b0b58e6cec2. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/LBA131800320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929061d9ba34856a925387a8f2269a9fcfa608ae9a781c391b7dd8685a6e718e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR96X1725273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f35d8627013e14b2a2ba2718afc6004b2dac8cebe13e99d613f160666eca12d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/EGA1K1915050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd6b0202f52a00a5a62d3dc4f7abba0cb2fb5c45e6db6cbc7227e0fa8fac6f9. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/TCADW1895173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4158f3065984c6a123cedbdeff5dfd467162bf546f68504d9be5cd20e283382b. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:34:20Z), 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/FR96X1981985.
Cheb Houssem X Hebib Himoun - Semhili Ya Ma (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b42b8cafe21a77526205a36abac5c1d65b4077afcbf1db6617dcb88acc1dee. 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/EGA262003015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3bef1f197f2c3677249544c8585ac2b0811f8851c91bad5eb543a26665c919. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/EGA261907805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8b99d22fe4d4e9a28acdb87d525d3e6285b3ad3f6c1d137aede3a2c90a6966. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/EGA262004613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e169cb7853878424ae075cff83e97ef6856c108f2ea2e1c2fdbab0b37f1be2. 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/QZN882228363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88650c6b91c4c94f7689d400bcd5273d294e9e362680eb1ee530c9e51ff4781. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:23:31Z), 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/AEA142211865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900ed9f6af2ad9c8f55e399d217b9916ea49c8cbcfea8b239a0a7dc1570f36d5. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:17:10Z), 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/QZWDW2207229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a18b9ef171847f075ccac7b1829d71a3a1943244daefa2c3955be312ee209e. 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/AEA142300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe2fbb981eb54fbd7b7df658f8e2b3ecf11c610de53f7bcbf2db8cf95398ffd. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/AEA142303750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14634b031d64d543256ca7f5d52366f96fcf96925d58c19eae5a789d2e38ea99. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/FR59R2497303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd2103bf9dd8460b617f9aa10a5dd9d6c87d757df2e9a53f39f6b3355a46474. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/LBA132400982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa86ef3eba75d8a4e544341c6b35e0cbfac10a64124fd2020f51114b65d1c570. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/AEA142502767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea872502b112e50c5c93e63f507c157ccc4e8cf9878ab07a60cdf7dd3220bd0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRX762534216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fb6a77b8f8418c303692360a186fb053d714c94944e6390c383e966d686512. 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/FRX872520873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22190683b9f7e336c1fd089fd32c4bda15aa31f3ef46e13a6101810a1271d949. 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/DGA052515984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3d6c4865a7f4fb7a6ead2ed38f154510ca2b235ea170eb9a167463e056d21c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DGA052515813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe831302a7ff8267ff5fa2b5f5fde53c9257f65a6362b3ddb30aa1ca1a6880fee. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DGA062501853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc305dc42d27f4786cd65366c35e14587861066d48f352ec6a87b6ae90c83f7. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:31:25Z), 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/DGA062578010.
Khalata ta3 Politique (Remasterisé 2025)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14be82e83af41c9233300ae7de8ef93196429fef7cb25b6d48dc6fa222172d69. 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/FR9W11711091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba76a060e15d514db8ebec73ae12ea452bf2024c64ba0c33960c3897704b997. 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/FR6Q11400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8bf7a75270c048237e81f29430c4203deeaf3334340d95343ce25f98b5a2d9. 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/FR8GV2425370.