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 0x6e5b347d2e557bd167219953c70be9375f24019a8640fda2ba266d73c6feb73e. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d298b783-1a14-454a-b6fa-101fd01267e3.json and https://artists.proofprofile.net/proofs/artist/d298b783-1a14-454a-b6fa-101fd01267e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
the turtle woke up on a stone by the sounds of singing bowls
evening meditation near the pond where the frogs sing
Electronic sounds are also natural sounds
What is the border between dream and reality?
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 0x910006e153db05875e01cadf0fd8945ae610d930cfdcd41361812c1edf5ae855. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZMHL2577643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a17bb95ced151b3c6937d00c6d64ddf2bc0aff1305fda386a0fb01f4478e86. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZS642516698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd450b8a687c845885c5ea73e70ae51bb1af5da534ac3cac1abaa7fc233b7761e. 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/QZS632566698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb1474d95e3cefe983ce4fabbed0dab5ec8dc9fa47415af932166582f6db59b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM42K2560571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a17bb95ced151b3c6937d00c6d64ddf2bc0aff1305fda386a0fb01f4478e86. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:41:22Z), 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/QZS642516698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb865dc99840ba146a23257f6fb9e11572ac1b4979f571766a3fc0c806d236c1. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:11:33Z), 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/QZMHP2424255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf991c1b785d22fc482bb5a3153cc4836d00fcbee2dbc23968aff745bfc37f875. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:40:55Z), 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/QZMHP2378330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e2d51bb864e95406a5aa1619055a300b55f94c48626dd05a5378df6a966ae4. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZMHK2330688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9293666baf8c55033611363445ebc8478a9d0360e44c67d534854c27b9d4fff. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZMHM2502336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4f584c54b1a65e940c3521f445db32fdc6b5772e1219e8117de06a8d2e770c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZMHL2500319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c27df75d61f299bd8469e02a1cdaad1245d89e3610223342dd3515f2319e973. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM42K2540285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8ee2f677ac7b2418d6f3bc0db392557e6148d4bed101e8c41c9282462fd327. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZS642554188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0ecd0689aaf69600815705d53d2203f9c3a96681fe2f4c88f205d58f393309. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM42K2524178.