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 0x4bf8c6c4933f6fb7e1c64e1825cf3c70627e7ad358a6c09b8791dfacb6456122. 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/3445b8f7-fc21-4f59-90bb-6b0b098c4bcc.json and https://artists.proofprofile.net/proofs/artist/3445b8f7-fc21-4f59-90bb-6b0b098c4bcc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sleep's Gentle Echo: Music for Restful Nights
Geflügelte Bewohner des Sylvanischen Gebiets
Soothing River Spa: Gentle Water Ambiance
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 0x64be3339abe5c77d7fc20a3d3e4015ab5bacad0ca5a005b05a4cd3b724644286. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GXC5E2432694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33358e2b7c223e21c2c13211f102a39ed295252e1294e18aeb70fa07f2a4457a. 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/GXC5E2432695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9625d252a457f7a5e5f554f3793fd62b9d8eb514ac37c65b474d526cf3a02587. 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/GXC5E2432696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c0a6e8e3deb9fc89cc44fa0f7669ff336ba1ca648ed39e6f4bbd1a6e1daa95. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/GXC5E2432697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6680d85070053b2a93752052b799a92ea3bb65a8ac9700e3aaffdce3e220f9. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/GXC5E2432698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb791228459c9512c75b380070ebe37c379da7e00e2e6618560b70b4144d8ffec. 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/GXC5E2432699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba73f1c332d9312a3afc73f9e8bec0156b05f1a5e81065c00a558a531ef91cf9. 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/GXC5E2432700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e709ca0a634199f2ba353cdeb4eab532b8c6b205e11949c2de430f565f5026. 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/GXC5E2432701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96e8c3c1e113fbd79a73572f3e5203ae2cd90c94f6cbeb75cfd99883ffe8057. 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/GXC5E2432702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc893d9b80c8ded887407a472a1ad63357587d2888abc9e55463b694310aa39. 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/GXC5E2432703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa703738b330489d0a88b96d8e79906dec46c3bf7c7d65d4343262a094ea9b5eb. 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/GXC5E2432704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89db03f8808b5697229e4b84955deefe9b0e5c363cd0a3c4a9c106b7289aad70. 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/GXC5E2432705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d03e7b2a99748293ff285b8375c33e2bf42133ac85a08fae0528f6bd2068ec2. 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/GXC5E2432706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09daeadd86167e105689d4d8ea020bf699d4e1fe1e88d15fbb4e8705daf3c45c. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GXC5E2432707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5298bec7819a50e510862e3872e6a0a7fdb972a16361ee6c0ded16b742c26f. 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/GXC5E2432708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a0a6f263fd042c76e4d5e4e07712bffc6c4bda237e0bd8bfb496d064f47644. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/GXC5E2432709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2d0cbf07d5c5f50675b32a833d677173e46ba2f333c9dc01ee11b327d2d957. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/GXC5E2432710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6382d25c0e6b3cc7bda41fc62d94f01e398cb09a159882e5a31c7541266449a. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GXC5E2432711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77c2ccfea123b43772cbaf094d9408197b5123707a8dc2dc751e3440894a39e. 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/GXC5E2432712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73e9f69cc7955a47881ebc4f9828c127a5f814b87d273a7ee0395a6f5c6ebcc. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/GXC5E2432713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064620df972e28342491db6e7eacdce414bb3f2530aa1032f1b535fd7ffca03a. 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/GXC5E2432714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856191be4507efb8388d338ea0d0c2ed972616e3de6cb7d5632e7ae0f522b2d8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GXC5E2432715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d48ed52c9c5b2785d019a4ec3f20612b249ddd5d3adf356c165fc8efb6d4b8. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GXC5E2432716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ec4e56f4e5a219f9a54a3ff3ee8bca56f9a0b96260b0d7954b102f8820e70d. 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/GXC5E2432717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5de9a98bad4493f88390bc83f78bed3364aaa545d01f52ec58af92510d87f9. 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/GXC5E2432718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef2b1f7c98f7a85c19427f0a529f0d6c51b8429b1ef52650d1a7bf851f040c7. 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/GXC5E2432719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373515cd405001bf762254826bd849aacfb3b6e3835d0d642fceb5d25f77130e. 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/GXC5E2432720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0917f25c4930896eec847127afb0c5f27d14d4a2b2ed621567d4029597c3880. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GXC5E2432721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9c13c59ad21f6b6fc7c9d56e9bcff181559e500aeae282bdd11b31dcde0dc8. 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/GXC5E2432723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf122cc5d23db94ea2302997f544a49cccbb2418152374925f48fbaa2ca6aa5c4. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GXC5E2432724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8eed262be66c286d3ceb1472095483f078e1dabca04ad1bf9a7013e6fa1cd2. 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/GXC5E2432726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a85b85bcc60678be4a21e92b8cf099ad529407481cd3d6af4032f362bcf92e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GXC5E2432727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b06bee2a546e5920a90b8066ba610781d12b1f735f6f3203aaa6b0765ddad22. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GXC5E2432728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b06267f754509bab65ce04b0dd07a577559315e86fd2b31c92f7c83845ed3b. 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/GXC5E2432729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d6459623949254bd061b3860a7340e44b0577cfb662ebb40cf074ba5181f15. 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/GXC5E2432730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bee086f9741174fca6cf5cc726d25a467e073bfae684300ebcdfc8ee04d771. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GXC5E2432731.
Warmth of Fire: Meditative Music Journey