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 0x441d6a79d1ded5ce5f6288abcf9309eb0e3207ff45e26b76d4b46259b2e8160a. 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/7a4e3564-6b38-4b84-81f2-d9fa7573c880.json and https://artists.proofprofile.net/proofs/artist/7a4e3564-6b38-4b84-81f2-d9fa7573c880.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 0xfcc6fc89d1e28c514c059c9427fb7ee13437b8d4f7e01462a0e86a19feeaef50. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/CA5KR0030252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0432f68edac931224dcb71f02322415168f7edf5c52b33839abb1da9441cdf82. 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/CA5KR2215201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d4f0bc8671d8f7bb9f807573c5a56afa009624248ef5848cc37207c006b6b4. 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/CA5KR2215202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcf41e746f1e9413a9017b08b413e11606f3766a83e28d38917925014278dfa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA5KR2215203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c213e5dc4133dc7fbfd5817e15ad8b91e1b6cf9a38f052e023176e8b83d555. 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/CA5KR2215204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56de83e8e93d68978cb89b224ee80d1a04aa300306c0012f0cd720f4b87faa6. 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/CA5KR2215205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa512663c193689ad61ec105a3408ebdb136ddc806d7a86658b518b7696fb63cf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA5KR2215206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbbc6b2f5f5d10b161fde297c6d6da2ff72c37ae3b2630ae16f0d1a9100e9c8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CA5KR2215207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3142838d29e7f4cc8392c8a8b94c70505a2bc654be311a6b6649c9dc804a725a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CA5KR2215208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0011f831abd7a1b4a2f58a519cfefd4f4f58f034ac730ee6bb2db00c79454bd7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CA5KR2215209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb857381ce130044496f397249756513e9e87ef23473a084eb6fd6b38fc3b3c02. 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/CA5KR2215210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46c5d7900b22465303a7fbbbfe7dbec4bf83ee90b04731dfd6ea9da03c9ca5f. 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/CA5KR2215211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1949ff40ab5a13d52dbf6acb7f2cef522a20d5b3df3341707828bf19552b11ff. 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/GBWUL2483475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd150799ce697535fa80b6634f055ef28336149328d4a9ac0c5e274016a783c1. 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/QZTRX2430288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8029c1bcf186b1baac655f10f4d85cab213586d25bc06158f8bee9759c9877cb. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/QZTRX2421783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8092632209ee99c38bf463066a646e7ef59dc94af2c79183b0ef431736a743ea. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/SE6QE2493088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cbda8a69395e1e709c47bd0570498e52efd9f7914b14383384e27a4c19c4af. 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/QZTV32455717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321a27c09a5d63a1a671bcd04b43dbd1c5bba2feefb835bbd6ed425e5d138401. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USLZJ2339114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181882a7e6a6408e51e2c76f49780c74739fe8b33cb7db4b8565631193aa2ffc. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBRKQ2416060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181882a7e6a6408e51e2c76f49780c74739fe8b33cb7db4b8565631193aa2ffc. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/GBRKQ2416060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a8aa5cbf0b4acb1d618615ab5800af91396ce66080b469d02d8ff23f5714fd. 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/QZZEB2416892.
I Am Home (Sariel Orenda Remix) - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc655e90d6d6b01a4c6521f747819c808f1a8da63254a0c93862fecf974ef9dbc. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZZEB2416916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7083f3787314690acf0b67bf4f391982319b27b74f288a0ac90e36326923d04f. 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/GBRKQ2282364.