thumb|Sieben Linden Ecovillage thumb|right|An eco-house at Findhorn Ecovillage with a turf roof and solar panels thumb|Tallebudgera Mountain and a vegetable garden at the Currumbin Ecovillage in Queen
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 0x13b1a57be7b01a5c3beabcbc59ddd83d07fe700f1ddf4436ce08f43afd0c3de9. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4268e503-038b-4ca7-ae85-e9165cdab1f2.json and https://artists.proofprofile.net/proofs/artist/4268e503-038b-4ca7-ae85-e9165cdab1f2.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa761e12152fe47afbb9cf58e754a833c1d07f1ad324491b7be28b39bd3953f. 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/SE5Q52100890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383a06c606a94f19d455bc58fdb8928d9612412ee948b22904fbc179c21b10db. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBDRC2423809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc2ce31e99c55e2352fbe21912819d696211f80260b510cc60738692300ea94. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBDRC2423801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9a527f75b109c8b8908fea3a0cbf74fdbd79eb8ecb610e0d52adfd3a874aa4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBDRC2423803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6100c484cb4a6973c3fec8ff41cbca0bc41bab474baf034a37f0c304307c1de1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBDRC2423804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3a47095cd35e1b26f2bb6f010d9075867f571f8ee7de11f7aaf5ad817ac4d1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBDRC2423805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3073284498157b346a3e275e5ac660a9aa829748eb12f8ac9df245ec9b5ee515. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBDRC2423808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383a06c606a94f19d455bc58fdb8928d9612412ee948b22904fbc179c21b10db. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBDRC2423809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ab0078b8df6ce310d2b74404cb8e3a37b26d8264bc3cf53313f92aa8430b67. 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/GBDRC2423810.