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 0x4ef6a63ef67b29f15442743a6b14027d7f77bad0ea6b88829b017be6134447eb. 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/55e6daae-e706-4de1-bb71-bd66abcd8e22.json and https://artists.proofprofile.net/proofs/artist/55e6daae-e706-4de1-bb71-bd66abcd8e22.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 0xc90c106342abd2b9115d53430cb0241de130a369d3286725dff328859be0b381. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/TCABR1303293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d46dfad98d61da7ae4f5eb81b41ed454f5b83fc8e6a28877bca7a0358f82969. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/TCABR1335213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe60d39776856d1e9e98372dae0ee9cf55cbd99d88c8f14c23ab9d2a18d477e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:09:00Z), 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/TCABR1335214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc619cfb5ccfe501dab3a1cf684bb0d7e2d87cc4d2331ccb4e421daf2309bafa7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCABU1484081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f5f287d62e3902588f0b8aea70a30f13fa6ce3b9fad829861fabef8c9b5f58. 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/TCABU1484091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf379579c44aba9bebf3b10ae6ed1b8478d3360b208215e9c6e9a09dbc28757b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USME31500525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3336ac38e94320d3a5e56f7693585f32607be0cd4e9cc2cacf46f6fae678dcf4. 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/USME31500540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8069a59da6e4fab161d2ab105301dc6bdca0466d46438b48fa2d0b319e05f7f5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:29:22Z), 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/QM6MZ1888172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc66f83bfc78a229db1479e1010ce7e572343f7eab5f1f7d5cff40a73ec2d51. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/QM6MZ1888173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f4f00544d5e5d4247f844d0c02ca19c9ca09e67f7390dea404ff88402797c4. 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/QM6MZ1888176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0efd18587ac67eb01c6ca384ffe443f76e48a948e08d5aa6729b3ad3dac6dc9. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/QM6MZ1888177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc66f83bfc78a229db1479e1010ce7e572343f7eab5f1f7d5cff40a73ec2d51. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QM6MZ1888173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e57f268ba61f566538e015762830563a580378d05b1d8223edb8049efb976c. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QM6N21997708.
None's A Ton: A Turkuaz Live Concert Film Soundtrack