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 0x6879953b36c8a6b57571326f3b5135c100cc48466807af8f3672286f7aa5406b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/790274fc-fbc9-4b3a-85d9-b5f5a3eeb986.json and https://artists.proofprofile.net/proofs/artist/790274fc-fbc9-4b3a-85d9-b5f5a3eeb986.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 0x2440154c118854ae15d8a3f90086b83b438ed01a8ab256f1074682028b1e10ed. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZS7J2235179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b657861c8358e9edd7237557b466b9a184ee9cc72cd0912615fd0ea53e97bc. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:11:22Z), 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/QZS7J2263359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9578ab8ed00e1ed6cf0589ffabcf546203b254b66c9a747641b9e311647bcabf. 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/QZQAY2337850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370a31d4793b98a1e902c7980e54a150eb3cd02250b40e6a0de91d6af0a3c5b6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZQAY2380965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2634f0e4e5397dceab0088cbcdf14bdac7fd988649cfe09664ad72a795124c. 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/QZQAY2391984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4267f6bd27a1204b4ed9fb3e39173b3900de3a65005c8614db90b6d9b067c1. 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/QZQAY2345745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ebedf0677be65dd1fe75777633b78f90fefc41ad201781cb154c789d2629c2. 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/QZQAY2396126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7aea7b78f81a34d9bc979d93f87d72a61ace0a276fb6dd670db22aed99da1bc. 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/QZQAY2347986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd76fb9e84c8e6183b3588abfacb00c1896c34665e3ec94a0168c27c7610cca. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZTLA2422918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365b2409769373cf2d3421ba857b312521ffa3499786debd2239211d6e9466a2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTLA2433954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb560391f3fde35ae0dab9369b737f698e1fb2c40e5c7243092f45543af6bfa97. 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/QM99V2501901.
So True To My Own - Audiotree Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c24c75058fc983567e84cb5237e986564bd0c52f6208bd9fff9310148ee7ff. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QM99V2501902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46ce107facb0bd1ce9d3fb197da3deb7195e8aa5d674f1a9a5c91d434673556. 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/QM99V2501903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420b88501db55e6800e0f025067931c9b1e7cb7b02218da20757f91ba528988b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:14:17Z), 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/QM99V2501904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e531f4810d532ac24d73c43ca860d3233d1cdcba0d4909b04c65357efff3c90. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QM99V2501906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503b749eaeb19bb37f2b020585fe728f596b83a6b89a64766f4b5edf7e20a863. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QM99V2501907.