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 0x06465f23685a399f822e8e2ef72b4ae55fed29e45a4fa3900cf12ecda501e3f6. 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/8631f20c-62cf-40d7-b935-ed8d7548ebec.json and https://artists.proofprofile.net/proofs/artist/8631f20c-62cf-40d7-b935-ed8d7548ebec.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 0x3bef479dc62a36c4aeeb5754c7c3f5adaf28b80bbb5e99af852de60c4aa16cca. 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/BCTI82200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef39be3fb895e3262c8ecc1db5b8aad36339c0b5dc3a9aeed15848dea3416bb9. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/BCTI82200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62732bcd31fc36f9287b9acf0a805b6540d34d993b27584c9e5c98b4bfc071de. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:04:12Z), 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/BCTI82200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fec6ca6be39020f1a2376ccf8fea4dd075e9049bce718e0265bb2c2324f1dad. 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/BCTI82200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc3e747f2ca1293242a529b5e54c0c1881006b2eac37be21e7248c3e7409e8a. 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/BCTI82200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6e9b042d779b3ca8c71c0c79bbe19a1460311f1a2ac1ab5743a00c6fb5ba52. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BCTI82200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bef479dc62a36c4aeeb5754c7c3f5adaf28b80bbb5e99af852de60c4aa16cca. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BCTI82200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc3e747f2ca1293242a529b5e54c0c1881006b2eac37be21e7248c3e7409e8a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BCTI82200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fec6ca6be39020f1a2376ccf8fea4dd075e9049bce718e0265bb2c2324f1dad. 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/BCTI82200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6e9b042d779b3ca8c71c0c79bbe19a1460311f1a2ac1ab5743a00c6fb5ba52. 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/BCTI82200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f906b2a56d42673a822e0ccd4c5d6b04fcf8eaa51edd0f4cfc48c3b15b3181. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BCTI82200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ae590af80b0a518e2099bcae3415512f6af80dbb4e5d352c6dbc6c52e8c524. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BCTI82200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce239de24505a64d1e3591a521b4d0987edd334b85eb19575d117c4a6b29107. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:01:37Z), 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/QZMZ92472655.
Leque Ataque (Rafael Daglar Remix) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f425370ecbf84cc1a643659dfc9e4bd781528fa2eda23b253e8ecb7abfb334. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T08:28:19Z), 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/QZMZ92497463.
Leque Ataque (Rafael Daglar Remix) - Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9efbf96de59ca4fb65945c37cf0331f8845ef768945a767068ea99e155cc1f. 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/QZMZ92497464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b3dc6a62511ba6ba92d847eebd73dca2f169e48d72d447fba4e69d12496913. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZNJV2491112.
Anne Louise, Filipe Guerra, Ludmillah Anjos - Pipoca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9e5d85930dabe6cae187c6715eea2cfe032b3f7ef63147b3554dfbed9bddb5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BR1012500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d75b50734b2b35b0745d6e9f0a81ac3daa5d6dc1fa192036719bb557ee41e5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BR1012500003.
Flash Pose - Anne Louise & Lorena Simpson Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2f1e130395a6036ea33184d43d2189cb189388114e9071a941a974e057ea66. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCM112000022.