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 0x11c49b7ae4f53eb7cabd395dc8049984aa381f9da761b3d540b6dccdbf032ba4. 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/f8a1db09-7a81-4659-bea9-33c0ded27c4c.json and https://artists.proofprofile.net/proofs/artist/f8a1db09-7a81-4659-bea9-33c0ded27c4c.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 0x48025bb7511dc60756c420c10fc31b9e1a8455aa150f5b4b720f58770ff2176f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZFZ72390330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca038dea1f8aa1357aa735781e1676d083f168fed996133b4de3d0798d62efae. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZNWV2313420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67191d1e6514fbb170180d3e04455f169e11bf9afd2b2c081dad42c14a3c7d1. 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/QZTAZ2382621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fb2cbbd3ea393f92e7400f53843e2ad9ce9174e1ac8515efc26a83fda7548a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZTAZ2382666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31b4167d34a2163487a08a48f81cc8074d7dd78a82ced812b0f69f6a51c42e1. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZTBD2396997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d14d3cdf2081d3f30cf74b601ed8e7742256d420ddb589135a02f9df4da21db. 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/QZTBD2397538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5068d2702f6a5b86ed8844eef1d20f2b0e61b6454ce056cbd7d269a55b2911. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZWFL2341715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf07b331466c488145fec2d4fe19a58013f7973fdce20aee06f991eb652ffd5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZWFL2344176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17105e696c67207cd4b6b0e98cd07d98a55996d3c689922bc6ef5914827d107e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZWFR2332066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4577ab7f327d0dbf9d6277c62392dc985c23ff9b7314c7cff3446e51fececc1c. 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/QZFYY2482870.
Handpan Meditation #15 (Lucid Dream 1 Hour)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a84d30c29c3f37b1b292f4cb82a6976e9bd3848e4b75a284ee60a26f9628003. 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/AUMGB2400870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c0ebd6648cdbab2abbb442781a4e04ea61d174a2b4206de6b3d88a1a057dd8. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZMEP2486450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81545b6b22cec4253bdd391992a0730f49dcfc718fced28057678b0cfa4d0d86. 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/AUMGB2401367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd8d4482fdabdf6eaefd12956c027872cf5d30ff6255207e5b102f255fa9125. 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/AUMGB2401757.