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 0x2c58c00725971fb0a260cbbcf4eb21e0ac92ab0de7756eda1ef45f58c819f4ca. 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/371d283e-b407-455c-af2d-9cd45b9e3da8.json and https://artists.proofprofile.net/proofs/artist/371d283e-b407-455c-af2d-9cd45b9e3da8.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 0x64c16c7af24936a7b1e0222fc7f1f926e33290fe550cc982eef2419b4e6f1b64. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/AUTUA1800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3315d804aa40029ba7f50c5df4bc27d1dc23590a4bda3f0aa27137572e9a211e. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/AUTUA1800137.
Ocean Sounds ASMR - Oceanscapes for Lucid Dreaming
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6553b953db6c1f1b204b0e7381ddcf2638402b1b8ef52a46acacae9e5f9b4c2a. Chain 2 (Bitcoin): anchored in block 957611 (2026-07-11T21:33:50Z), 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/AUTUA1900373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79591b4392d3131eb1c35cbecdaef07b22b85df9ff3b5c52c5c9e1ca2c62f419. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/AUTUA1900374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1c3d789d0f594c87c8467fc40a8a844d525fc83ee13a091d0f5c7b255d482d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:20:38Z), 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/AUTUA1900377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baf41eaa95326d0fb9257a5dcffa8bb1f54c2cdc9dbd636f8013343885a44c3. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/AUTUA1900378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8abf86bf9856559f6d7e6a0847654124b7dd01773883eb39cfb8a2e0877d03d. 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/AUTUA1900380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b9fee23838c55601703556d27a3fff1e2a42c649112d5d0f2d5be90b622cdf. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/AUTUA1900381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab03d86375e95c28422d362f2221c783ac009c9c379de7fcd543ed9f979cee40. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/AUTUA1900382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bcb503584e5261ebadceb3f4458fb2dc96730e2a329f42aea18a1a17341b5e5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUTUA1900383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf494038929cc12425b8a83d0a859facf6edba13b7e422eeb02cb30459b467df. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/AUTUA1900385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd91d4f213e6df8b1f3f77c85797ab3772d42c5816e608daefd4a305afada66. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUTUA1900386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4453329d81ba0c1af9dd1c13ee6e906327c7f6c3a6984e2ac4a51c33de10bf73. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/AUTUA1900387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270aedbd10205d12798aec8586a8f7da3d0fa061a2369a3bc8cf447ccf886111. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/AUTUA1900389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b599fb64518bb2da990a05bbf97a6f2a678a17031596a2aaf0ba2fad5513caf. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:56:36Z), 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/AUTUA1900407.
Seashore Soundscapes - Sleep Music with Ocean Sounds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb2872698ab7b80e9ebacb7218d91a2456e174250347ba421ad382eea6f51eb. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:51:41Z), 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/AUTUA2300946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd324f97249a05e28888203b30455a7ee57b64482dde7ae46cfc647bf636b8e54. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/AUTUA2300952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9314fc9e54f4c400e409a5fcfbf231f57bd80a9c8cd3e17af6d39b73c362d1. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/AUTUA2300953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda67bb03b2b5da3de31267da4d3946abd231304922805c47282142426fab9464. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/AUTUA2300955.