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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5b98c2864fb654d23c6275bd18f213227ac5e9a74b11948e70aa57597acfd4. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5204004-a304-4432-b56a-373e3c3a5aec.json and https://artists.proofprofile.net/proofs/artist/f5204004-a304-4432-b56a-373e3c3a5aec.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e28e2b1793fbaacd9f2a557edfd4cfd6095336a2ed8097d7fd8cbcc69f1a178. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/TCJPA2401960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840f12b3c42075c9e654aa944452b11e81bde8d01eae3c0e3be0adb49e224fc0. 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/TCJPA2405910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c665162973bb163a2ef629e174956e61cfeb9591bf997540582a761a2bb386f. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/TCJPA2449240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f05ced683052c21db1477ba70b2d308a686b2570f2bd8208cd3a8adf228422a. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TCJPA2491273.
NEON TOKYO - Demo Sketch - Acoustic Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa800edaee2f8cc1c8662033e6931ae11c405e9473166a3dec4cfb025a6791614. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCJPA2491279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6851ea97bec16f8bba81c0c824865a4df66de0ca0d345f4e43d7039418c0d6. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCJPB2424974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003fd369f579a0e2fd14bcf1502c2af5af3711c58ef166d32828339270f4f3d3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCJPB2460448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400c2d6a1369370687608931e6c9cf584f88d12f6885662b1638758fd63dadfd. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/TCJPC2400890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4402ce4d12f4a2848a2dfe9bd895d7495c69e7c3834d991447faa42bc06e39e6. 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/TCJPC2483762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f114c08a55ba10a1cb19fbd92a37e812816c7f7f7948dfd55f48c6a4dfcd25. 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/TCJPD2546571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf451ad45549223ab00fecd2f851833a94a7606ec63e6e2345f52246996a22d6c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JP92A2500726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc26fd9cc2f6cc3ad47322c29a657113d0c2b8aa134c5964c0b2dfd826734f3f. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/TCJPF2595077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37326bd7834f8d1a3263529296d553b4d81afaef92d441a6e50c2f8e11839e34. 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/TCJPH2533231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b59a7f19f87b7d1a5407dd48e9b59070e09bcbb634638a1d6c52c7561aa2bd. 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/JP92A2505866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222e505aa864119c0de37f598ddc6249a45163c2c32a4f1603ec77d519ec6976. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QT5M42589392.