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 0x7366a823552a27e6c5254a2aa89a412423582ae4ab218638f2062a80b50de2c0. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93c95b25-3ed9-4993-bf2c-9c5549f21f43.json and https://artists.proofprofile.net/proofs/artist/93c95b25-3ed9-4993-bf2c-9c5549f21f43.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Day By Day (feat. Zacchae'us Paul & Cisco Swank)
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 0x35ff4e3837709059f43e9cdc2e6a5074c37982399552aabac555baa2573b0cbd. 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/QZR8K2321800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb06d17b5bf96768ed2990d78b0d2d2d7ccb677433b6a7324af9c4753b65bef9. 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/QZR8K2321801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bff2cf663850a648bbbb4e65beeef27617e988a44ed1a8e4372ac6e4ca9243. 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/QZR8K2321803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd96ddaa07ec20142bb8e5e651a0adca5634a081f3b090d4a6f8ade6c6d323d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZR8K2321806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635f31eb61e807c24f21e0411d0373e824e0dc7dc56d7cbc5cafb300baa64223. 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/QZR8K2321808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f031ac7f4ed24f915d099f1eddb4df796d824c7a926216f1afaeadd7c33ba7. 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/QZR8K2321809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2f9ad00d4a981718932cccf81a92d6ac071eb3dfdff585bbdabdccd4f4669c. 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/QZR8K2321811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66836119d602520f6301088a8edcb812afba02aafc7774247abab7c489b60bbb. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZR8K2321802.
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 0x7d17922b1e489d0b64c874895173bce97b4d54edff3e9404776a3fbeed48aeba. 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/QZR8K2321804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97aa17a9fdf2f4c6a69fafab5229d1e179960aa65e5abc7827826cbeb8a14450. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZR8K2321805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf374e81d09c69f97340c2578b785b4eb29ee69b73062d52e601abbb4bc26f5d0. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZR8K2321807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38edb88f0995d60725e85b1185ee68dd1c4add2ed6a0d76618b31c267419bf23. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZR8K2321810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2861ab4e8409c7deb9fa5e150eed8089fe4f0cef0eaee730583bcf2e1af1d51e. 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/QZR8K2321701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f107ae6f428c55f891acb16cb3bb69275cb07d6c8556c7f10154a0577b1258. 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/QMEU32316066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c57c3345041fbc73cb4648877764318460144784bc03b885dfe1a7a70cf2b2. 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/QM6N22386258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b94cd66c8f4ba0534f3e21d31f93c1a9c37e86831286824b2b16ccab5355a48. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZR8K2321703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d20d62f8b9b69cf9dd90c3fccb949a23a74ee94039850dcefd84b1043c6d08. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/ES7712312705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7825eda78d27f9a61404e29139731e88bd5c6223ae3f73220aabdc7686caab6. 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/QMEU32316065.