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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb8ac8b71df5d263dfe931a2dff0bc6c56dd1ccecc67371a6f377a181a4963a. 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/0981ec0b-9102-430b-bb96-c16b785a5e36.json and https://artists.proofprofile.net/proofs/artist/0981ec0b-9102-430b-bb96-c16b785a5e36.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf9ce4e88f33b46395705d68b763422e14f8641728cfaa3a57ca1092f4deb65. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/UKJXX1800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97520ac79dde429fea3b3d42acbae0870f363ae1d6c1e753b1072d0b2d351d06. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBLV61916439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa982b6ebceaa1bab56aab8ea80837932a771aefe8155da35f48381d6d8057d2c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBKQU2288051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a43c44f6a182283dce2c32e1832bcd03c026e19efaf9b9b70224122d85280eb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBKQU2288052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c3be07f4624aa3c5c39f8647161dcfc73b044d39a39130ad541e5bf289f721. 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/DGA052487660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62c5ee602a5de1300930c78e6406146b7884c7feadc754b53218bb785c254df. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA052487661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708f430e84f72557f7be4bd6ef40d610ff844f74859e2ae5c88885cfb413277a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DGA052487662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5f82ab0887da94265441b5663b200b34a7512be01e90ea2ba3acc6f667a1cf. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBKQU2509519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6207a78982efb93a06660e093a3aa3021b25ef8bd3d639601d7f31d05fd22b90. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBKQU2509520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81fdd61972d88e2529bb8cb620834c7a20341b774c501953fb8dce1c142e6ba. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBKQU2509521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4290f3b57f2ed0f2b48c98857a7d10fbdba645a75e778166421d608aa77405ac. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBKQU2509522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad957a174b9041350a8445b182229cffd4137c04e2cdd8d29ff3facbc03ed5c2. 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/GBKQU2509523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ab2c4ed457b2e4969f4e91d32abd441a9be58ce7c01b741cf76b4484a0a9f1. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USA2P2544598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59c17a035115ffaad2324a152d08587d59969c17dc990da1c7ab64cd565493f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR96X2145293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59c17a035115ffaad2324a152d08587d59969c17dc990da1c7ab64cd565493f. 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/FR96X2145293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278994a70bb7e8f2087a4219b52cdb5c443105fbb9b7e52f217926ef7f027127. 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/GBEFR2309208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935b95c4291489a6cc1b247182c4474c716e3399591539fbf0735677157e0c32. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKCTU2406115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13674e594373e0b5b1e2d264e8c994819d8998df943d3ec722426d48322b263d. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/GBBHF1310605.
fabric Presents Laurent Garnier: Into The Low-end (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5ae9f5892ad56ea97073387b7334c311aa797375af073214346083be3bbb05. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBEXH2402069.