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 0x9727f2241a2f33344ec4a6e3760d61091f07c1ecd99f98eeb3c86658fef8b9b3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5dd5756-7579-4555-ae79-34cd9e07813a.json and https://artists.proofprofile.net/proofs/artist/b5dd5756-7579-4555-ae79-34cd9e07813a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ambient Nature Sounds - (Sea Music, Power of Water, Rain and Thunderstorm, Flow River, Waterfall & Underwater Ambiance, Birds, Crickets, Forest)
Refreshing Forest Echoes: Peaceful Morning Birdsong and Bamboo Water Sounds for Rejuvenation, Balance, and Positivity
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 0x4fe1ecb6ae6182456df1d503e35a7aa0ed87036fc80b6b260864b1c98aeb14ab. 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/IEWWH2463739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813a128c496d901012441a8de999d1b720a02258e090694d1442157c02aa84b4. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/IEWWH2463740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f82fb037b602a85e8c8dea0200b2c726f4c8c961407f6feae9da352a8c7472b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/IEWWH2463741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29e6b969b9180efa80d1770ffedb54f21920095cd2d6245f7c613d12d6a3a0b. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/IEWWH2463742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cb6560490948119be8a1757c486f226e10cf210c74169856ffe566689a7b5c. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/IEWWH2463743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbb592a36671d79b8fcd665931877be07b0ee138ad473ec9f33149a13865e16. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:04:40Z), 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/IEWWH2463744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29b734960a837db107e2d20a8c41902363843b827f34d7c3f4af837da5c8c44. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/IEWWH2463745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf646aec8fa6eb53bbe9898fb50cea38f4cffab883762055ee105cfc8cc9b690a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/IEWWH2463746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbc1c71c43b21b41fe7906f75eb4dff99ab95c44e5f55f01f6da5f85689440a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IEWWH2463747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa6a5522ce50c5e16a5beb0e27c0f958d906b568bafec410a5549edaeb929ef. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/IEWWH2463748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19740215e2ff658d1337ff7a0b24ebe0755006de1235732e16235de07e3ce06b. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/IEWWH2463749.