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 0x6c49fe896357ea29d55be7dcc30d23a209bbb9dda2d38395c42c49cc41aa2423. Chain 2 (Bitcoin): anchored in block 953638 (2026-06-14T13:10:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/392032eb-0282-4cd0-966c-766786bfecf5.json and https://artists.proofprofile.net/proofs/artist/392032eb-0282-4cd0-966c-766786bfecf5.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 0x72895af28888b9d6779efa29b179112cc9bed3102ea98c6b09bbf1f06fc30d0f. 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/BGA471911983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa165a9f6dd3a5fa876f81a5e5112c6306a104e9b5a80d90624440f77400c60a. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/BGA471911984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ebb09f9ab22cd7fa103f5bcd18df8bad98430fc6703dae1c778539eea11206. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/BGA471911985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68048a228cbe898a8e873cb11209f35955f604dc1d25024fa718b35872230d53. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/BGA471911986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa8d6a8cb3e4295d204b2e72f08a7a9f613c121dfaec4f584d1c5facc15b12d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BGA471911988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17a94b4e0396841c6fdeb784b0f84b2968c074e9c0932f6ce03eb2f79802bc9. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:13:16Z), 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/BGA471911989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56678c594e4e31214aae06a95a7ea6d671882b2d49fe2ca1c257344acc71e41. 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/BGA471911990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0d21e5d78ffa799fcba17c3aead97eaba10ac1cdd2c47b3663b51e63a17b11. 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/BGA471911991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c729d86628f632a9f6047bb0fe7c776d84698ce4e1e615a35a3b53b56dc5656. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:11:42Z), 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/BGA471911992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525187ea1bb5baf4d7abea5c868aea61b4b4adc474f8410b6bd3f31c89d93148. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BGA471911993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1c7707659cec81d2a11116489fe924c7f0d3cfa081dc716f6c39f8facb89d5. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:35:55Z), 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/BGA471911994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb26c76f6090ba2e58234e51b18e0f5432326e3576130738fa80ec54262548b. 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/BGA471911996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3592fc296b18b9a419b91f593eac77eeaf5e708475393ff6c211c11334987e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BGA471911997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542d0e39ff1d05eb7d9f082e7877a0dbaa134b2fe4e17ae4fe36ac3096763680. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/BGA471911998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ab67f612d9e2154d147c93e40f2c9458cf6f846ed7acb482ab07bfebc1534e. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:17:05Z), 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/BGA471911999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6998d1771b0f999bea31cedaa3f5d862a35ab67248f2f77df984b38780fb1f. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:58:24Z), 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/BGA471912000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda89ac0d15e5a8426c3fa74d25cca8bec95c0ebc9bdc090fe87f3745ea75e185. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BGA471912001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b23a5b9f82bdbc07116cdb8d223c5c26bba2f75f452cc2efb3d0f671d5d1fe8. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:40:39Z), 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/BGA471912002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca0df4385127ea27537dfc6470ff212d4e9b663a1db0ed691ee865e8c31f344. 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/BGA471912003.