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 0xf43be2502ec17749ad365d0d4ebe43438191f6e8b2d44f5a6025af73da5f7fdf. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4e3d362-9035-439d-ac65-b0ef9027235f.json and https://artists.proofprofile.net/proofs/artist/e4e3d362-9035-439d-ac65-b0ef9027235f.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 0x489db40b4a021793fd4c2715b0e2f3bcd82a450149dc866895873550a86519f8. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CAV161800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58568167ed1f398ba4c6dc95e7627a170bf833694f9a092c383ac4afb7458b1d. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T16:00:10Z), 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/CAV161800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc995e580afe558af70d91ad31c0dc66050ccfed4e3709ad368d7e20bd230de4a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/CAV161800047.
no love lost (feat. So Loki & Gray Hawken) [Locals Only Sound Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c38572e74dc91ab226047bc63ef40087a65639149fc4a4116ab4fe4d3f21cd. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CAV161900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0369be4b27e33f863db5463a43074832a751996a0dd77dda84a6efc44bb2a5e9. 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/CAV161800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3f889a39c4ecf1cfe4e07361559c396ff5da255d68c2c1596cb1042ca86244. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:04:36Z), 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/CAV161900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc995e580afe558af70d91ad31c0dc66050ccfed4e3709ad368d7e20bd230de4a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:15:27Z), 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/CAV161800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea610c3fe4c77376cb453e6c8195c709ab6503cd8843f86c3acc52a712d6051. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/CAV161800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489db40b4a021793fd4c2715b0e2f3bcd82a450149dc866895873550a86519f8. 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/CAV161800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba308afa3977641b38d1cdf20fa3cb905e1b8319bd6ad1809539e41fc3bbd09. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:55:18Z), 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/CAV161800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84dca6dbb41f850833764adf382f02e887a748cb990b131a32397f707eac9b0. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CAV161900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367360b95023750f5754312b3e7c56e7191f361cf491105818881be63cbda7e6. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:36:03Z), 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/CAV162100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73c449d1c620204dcf83bac09458dc14a670954b55d602cf5e011b1aa4d8f57. 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/CAV162200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685e668a6214556c089ce9d993de50b894de4dd6d2ca1c9f9e91d9843fd2ba23. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:25:26Z), 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/CAV162200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fadb2816ae09c6b03ba2372ba6a3915f6f1767f53e46c8908e8f95ce2e42e1. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:35:57Z), 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/CAV162200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed53b17c8e462bf852e34324912b36fdaed85e25bdccdd6df766ff290085186. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CAV162200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4a759c9132ba73494ac5e12ef553fef29e3c299056939f19ec26d032f93a8f. 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/CAV162200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9575e1718d342b0543129844e115173e0adcd7422ac9c61f00b7a953ee5651b2. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/CAV162300039.