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 0x26778e4ed01f618fdcd2d69a1766a45a9b6b3c95ccfe84e11b4e2e943bcb88dd. 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/e17d397b-cea5-4078-a143-e2deef7cac62.json and https://artists.proofprofile.net/proofs/artist/e17d397b-cea5-4078-a143-e2deef7cac62.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 0x6b7dec083c82c20182544cd1a1e4fb7f49438587852dc80cf4bfeec242d09767. 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/GBWUL2050828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbda3f83d7a0a81068d27ed26eab38afeffe0bf137e5940eae37c68c5d964d2b. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T16:05:24Z), 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/GBWUL2050831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28303037a454e058b657ee07e5d7f6133c5a5fef48f62ba75f9e9c8b62d50664. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-20T22:03:58Z), 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/GBWUL2050832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a81763020a3047dcbf9f5b37e38ad77e137a25c7bc8539fd3c6083f08ded637. 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/GBWUL2050835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd184c3f4722a3f8a2650dcfc103526f12b886bb4644e2c11bdc7ceb2240a2bf6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBWUL2050836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a99e2d8581eaf80820c1d2728408d51c5b666bc0f938b2a9e053511538b91a. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBWUL2064477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a1cb3d4b54d20661e94c33a7765a8b0b32e4ef398cf0e4b5222df8226bfed7. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/GBWUL2064478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bd60b42d2f4b66fffc075c747f574c76f5516f3d95315efb3041fc8a1795f4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:14:17Z), 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/GBWUL2064482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cec08d9f1c991993e937e1b0a5d12ff4401ed0fd1d9a41f205a2d915aff70e3. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GBWUL2064485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cad6491ae4daed1a19107755e44adfe1df10354716894e7a9ebc29618199c96. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:04:29Z), 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/GBWUL2077185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf490c87096e1bc9e7446cee42f21fd56fabb5cd16a0ef9c8d5399315e4050f0c. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:22:04Z), 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/GBWUL2087106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2658fa5450984a9d6edc5cb63f048f7bb333d9be62004c823f5f3b2f996099c0. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/GBWUL2087108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19044a77538838514a75d4699c5d1a7cfce3b86cd7f7d727aecdca6a6a985ff. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/GBWUL2087109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36579a2d805f3fd2c92676acbf4927c7a0454b08593b6a53b7a531db296032fb. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBWUL2087111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb168659fe9979e3a96d112f4ba8e5d1bbdf1c449ec3f54d6940a5a237eaa971b. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GBWUL2087112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080712ba766fdd253f7bdd938897d9c81ced4615d27583d8b71c685c2f78dfe7. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GBWUL2087113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f417504646c0ab86a5d8a8919d68121f0639a189bedbab54df65bd37eed6980. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBWUL2087114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad24a39a82eeb605283d221caa6492e5b958b6528a35c8957ac29a4e7713f572. 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/GBWUL2087115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f8f0c4c808b2988bbd5cb00fe32a693532e87cae4c6ef1761332b6fb427cdc. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QZ5FN2022716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c90d31584e8d288a6ac62286629f0912e2569364f3437ddbc85c75e9a40cd24. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ5FN2022717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb465e981332c7da6a93acf3cd596c4eef279b3127ff99eac59a2a0a28c19a36c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZ5FN2067732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4462d3face66143f11f14c67506f623cf4504a1719fbef90c3f05cff3d44fd. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:59:04Z), 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/USLZJ2094703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf716494399f7dcef244de4bb980abd669d0ffae93c3dbb336eee21b1ea9834d7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USLZJ2094711.
Que l'on chante et qu'on s'apprète (Deck The Halls)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880045647f3ffd9466134d168bff32cadd58c01af229ae755a24d806101adc54. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBRKQ2035569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92eeaf924fd06d0fedfd6501aa38f7331b735e4d96826b2eb1b4f094d88213e. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/GBRKQ2035570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fa68ff23b529f9029c7130dfbb4ca9f94a645c291844602b0a878eb0f2863c. 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/GBRKQ2035572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65bb85753a43fe77a3d721117b1d62c2efbca84862279852292e6ccd35ef3fb. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZ5FN2152272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482d28958d8d07761bee45517fe4a5345125d1f1dc1428887ca0b206aeda9c32. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:46:50Z), 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/QZ5FN2159050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f8a1759cc7cf9815591f4d757d096bd48919c91ecc30bb3b082a8a9034f2bd. 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/QZ5FN2176770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3651d8e807e6bd35b5de890043e1ab707530b44e788ee5075766a5a167da48c1. 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/QZTRX2114231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d89215319c52cc709771770098e58bc4d4aa410a190005b0da9a4b141382d2. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/GBWUL2306492.
Vive le vent + Que l'on chante qu'on s'apprête
Je te souhaite un Joyeux Noël+ Mon beau sapin
Cordonnier, Répare Ma Chaussure (Comptine bébé)
Chante et Joue avec Johny – Chansons pour enfants