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 0xbf637a9e8c0721521566a7a24e7b93965a61a2ac984375680a50cc8093b1011b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fff1fddd-5757-44ae-8ecb-dc33cdcec966.json and https://artists.proofprofile.net/proofs/artist/fff1fddd-5757-44ae-8ecb-dc33cdcec966.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 0x9addeed003458ab242d7184399320268ec93f85bae6c12cacb7507deb995efcd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEZ651326285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0efa1ef0aea08d4921764da9f122a691cf5a33abd1c5cfbd8fae9b8bd8a35a. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/GBLV61637172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8560caad8e32afe55f00afa79059b00988bdc63f4534673c9d5a4120f7a209c1. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBKQU1864503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7bb01d72b7ab2a59399fdd46ee62126c0a3dfa4c6acfef00af585a5969b1e0. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBKQU2420126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6892fb45a99918f7057d71a219479f569f5ed06fdf33f1ef0dd0930785e5a015. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/GBKQU2479575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba7fec9f21df6e60ee7d2d438825a7fd7402a95168ed2e56301309d3403a9c6. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-21T17:33:36Z), 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/GBLV62410274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e5948803f1d5707e7b1802dcd6bdeb7fe1b248a11f9bb63dfeb643a8bf36cf. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/GBLV62410272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef5b5efaf2f4d253fb62a73b86d98ce073987d275c360feab71a7ccca17f4d4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLV62410271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fa8e5d9298cd6a8ede3a4adeab2b72ca0dd37bb72e0b2e64df537025d3ce41. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:08:38Z), 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/GBKQU2536181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72b86ddf6ec7ab3b31e7f6bd1103041b2db0b70afac3f8071000275a0d25bfd. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GBKQU2582467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43ef6e8af4df7efe9f522ffb3f6d7f2d171d7a7918d565f436a40dad5acc04b. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:20:47Z), 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/GBLV61523196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ce1bacc4853bd96dc69fb047e4e244a0676cda66f0f6cc915b0089d6667db6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR9W11413374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dc9a269e926fa6465c2740f0230da5c6b603c7ae0a0fc3a16ccb30b771ccd4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLV62416803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dc9a269e926fa6465c2740f0230da5c6b603c7ae0a0fc3a16ccb30b771ccd4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBLV62416803.
Armada Subjekt Miami Sessions (Mixed by Robosonic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39628b1f52644702f6c11516128a0e8ce9c5740282a7456ed1eef239a8bb81e0. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NLF711900032.
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