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 0x98f5a7e19223e9d9883a87720e866a8666d21f7313aad2fb960bf1c86ea5881a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b4682b0-e11f-4925-b1d2-e45107643a60.json and https://artists.proofprofile.net/proofs/artist/5b4682b0-e11f-4925-b1d2-e45107643a60.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We Are the Sky (Psilocybe Project vs. Tinker)
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 0xd9a68d9e53ec0fd74432be1fef3a11669154b134ae51b60b7e1c6a183c1b4426. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/CH6541802912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6faeb8df63a57b1447cb63c3b7a32415e802e92f7fdc356ff41937f5e5ea329. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CH6541802913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08a536b6a33cd45df07cb63430b372d5ac437832cdaa5845e71bed1f522ced4. 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/CH6541802915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5eb343f452c0cc914c1384aac51da7998986c87547a25f98b94e7e4944bb74. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CH6541802920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2def013ef3df516c7ee33c751350e43993b8e7b2872032b57cdfd25b3386a21d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CH6542073455.
Working Memory (Psilocybe Project Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08b6da87a38d32898ac6c8c81f63c5d21e933f803d0899b2d3840b19941abe7. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/CH6542328838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538e0b24fe26d5f343ce7ea2091634afd2dc753f8a0c5d99465849665e95db5d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CH6542319342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f64256215e921a134e58f4b7011bd5d829e3a6bb7358a8fbc64a7a66001ae67. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CH6542328837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e5c3650bf375a163f2580c120889395b15e96fda2f4acc76bea3ce2ef7021c. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CH6542442040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6370fc23f16b6ab1efe4c0ea039d1a94f005bb2312e05d052af9a28bc4726be8. 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/CH6542458460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b2bd3796afd1175f5cbecfde6d8bc0d650ccba2083cbc33241a4e1fce23c08. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/CH6542481361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b95627ecb2789f9bbda963d513c44d084b39249a6bb5271b19b9412157da79. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/CH6542513292.