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 0x40195a4a2ac22197598c1e7c7f0abbbc9b10f9bcc696dbcd92bbe1171a0baebd. 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/c9bae830-9f20-4a2f-ab5e-16ad6bde59b7.json and https://artists.proofprofile.net/proofs/artist/c9bae830-9f20-4a2f-ab5e-16ad6bde59b7.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 0x2c9ead49a1942d186029e1624cd576b2072a0b7d54b4461ab5963592a562c613. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T22:57:59Z), 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/DEBZ70600372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6e6325d45d6990da89016825378633adf55457bb5744fd4a43f8a6316c813b. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/DEBZ70600352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb24a7bcc1c6d46d551021c28854259cd8f1282efc0f9a836fb44debc2251a1. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:27:42Z), 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/DEA450402010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c47adb599ec3ec96d30d3efebeac24442ae344edcf225f6336248c349247d65. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:44:09Z), 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/DEA450402090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18832f8711d55e7fdbed1c94ae62fb09a7d3c92755ed546e913a83d4b32c399a. 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/DEOO51300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9028950cd92edf37660866a4914b88aefebbf9965305d4bd5c5fb57fc01b4e44. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:37:58Z), 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/DELG71400679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa0ce8e03f219a0b925b9bd70b835cd62b32167177a9500240819f26b923055. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:52:05Z), 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/FR73R2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf45ddb1c6c56340ee365e9596ed8d59546caee762146f922da6b48908c8f4c7. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBR8R2500043.
Electrostatic 2025 / Electric Vision 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ed30de07c579fa4bdff8ae4f7d8964b2a12f2e75aa420209a97c54e8b77903. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR73R2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfee173474d4b85acf03e61f64a2f4ddbbaf4f3b52d964ee2303be54948af32. 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/BEC262232001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e36ea04e40530ad30cf7db235b93fbd7d55c006c3ad7b31b60ec99f57e912a0. 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/DELG71401199.
Where's the Revolution - Terence Fixmer Spatial Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8ecd72912c6ddd780d2eb198cda0ae67ae1d2bf96782a9deeb834d4485c1fc. 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/USQX91700250.
No Shuffle - Terence Fixmer Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b64ba3d3d910fc767804c1a5f9ca748788c014fa5360f3dd26ec4f823f5edc. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BEC262232005.
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