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 0xe5fdc009ababbb9eed6efe651691f3c04ae2bf238683dc97245835248dc20496. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa7220d2-e631-4e03-bcb7-d264759007ea.json and https://artists.proofprofile.net/proofs/artist/fa7220d2-e631-4e03-bcb7-d264759007ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
New Zealand Naturally: Relaxing Birdsong & Nature Sounds from Aotearoa
Wattle Track in the Wind, Tiritiri Matangi Island
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 0xeda1d0302d613cbe1aa8e7cf837ae6ae416043448184e331757713965ed960da. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBGEA1800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7125598b241c27705a618477c03fead03b46158184158985ce51254b74a2e0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBGEA1800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5374f5e72c83b22d01323613f0a93e88be7cc461b112eaa211cf665d24732361. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBGEA1800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0bca7cafcd5a5da7922414b7d12d1d58b636227572993970c6eef471f9379a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/GBGEA1800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02a99fca37910be10c86fa56bdc4c31a461f321df4b9cf1c1a7af91d33f3069. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GBGEA1800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35211c89b83804dbd6457a85cbb052ae62c6d60bd899c6b2a3a37b4393acdb88. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBGEA1800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbd6854f1816eb04636c96a2d0e2f3ee3647b3a3f742b815f75f3ee53e41358. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBGEA1800025.
Morning Melodies (Daybreak, Tiritiri Matangi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade0f25c69c38800034c0e48201cc650bb19b47cf30809a9377b208d02865737. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/GBGEA1800028.
Songs of Hope: The Dawn Chorus, Tiritiri Matangi Island, New Zealand
Songs of Hope: The Dawn Chorus, Pt. 1: Tui Before Sunrise (Wattle Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a897fcfcfbf30cbb3c41f2096ec8b59226ec532ebd61046de869fe425ab617. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:15:35Z), 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/GBGBA1900001.
Songs of Hope: The Dawn Chorus, Pt. 3: Korimako & Popokotea (Whiteheads) [Wattle Track]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4504ab093394ea4529abfce76b86f4ca4db455bf4a12618b0ac12771312a287. 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/GBGBA1900003.
Songs of Hope: The Dawn Chorus, Pt. 4: Hihi & Distant Tieke (Stitchbirds & Saddlebacks) [Wattle Track]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcb006c8b1d61323669e6c2af519970771e2e44d96df12413e4000851423e44. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/GBGBA1900004.
Morning Birdsong (Tui, Stitchbird, Kokako, Nz Robin, Saddleback) [Kawerau Track]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9855616fc05c16aa18199b641d5c7b86559ce7f51b2b43cd7b33757135578871. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBGBA1900005.
At Peace with Nature: Relaxing Sounds for Mindful Moments
A Serene Suburb at Dawn (Parnell, Auckland, Nz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200ecb643bffeac9491850ffc379e7406cb82093b09fb1cd5aaa29b9575d4419. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBGEA2100002.
The Peaceful Pacific (Kaikoura, Nz South Island)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75be01ec1f25ebb24dff982b2232d9b1a8f11abc16763f08ccae1da6ca5383b7. 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/GBGEA2100011.
Bellbird Walk and Stream at Dusk (Saint Arnaud, Lake Rotoiti, Nz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e363333543ed80ff1122dff89dc293631c420e2bfc070448bc0342e5da4b39. 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/GBGEA2100013.
Devon Naturally: Relaxing Birdsong, Sea & River Sounds from South West England (Woodland Edition) - EP
Devon Naturally: Relaxing Birdsong, Sea & River Sounds from South West England (Coastal Edition) - EP
Australia Naturally: Nature & Birdsong Sounds of Sydney
Aotearoa Naturally - Forest & Bird Sounds of NZ