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 0xb985d696e9961bf27f11c5e250dcb57724ba2d93f87717910f6b8384aa1fa6c2. 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/412ab732-4170-4bf1-87fc-06a4f3519768.json and https://artists.proofprofile.net/proofs/artist/412ab732-4170-4bf1-87fc-06a4f3519768.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 0x5332fa98ab2cc27e4c855c6a7ffb66a9da2dc9ad67b216195d60b7d22c2d379e. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/QZ5AB1614266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2088cea6566d75f7ac87aeca8699f4649ed2269ebe36ec3437e646e0fbe4c3b8. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZ5AB1614271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87718ef68c36ec662be884f87bc79d0cd24ed6ceef5d1b68fd4372f71b061896. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/US7VG1735136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903d172ea4b8b883d721a104209217c43e18653b2a5789527e8b2b1d597e891d. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/US7VG1735138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f804d26016c5cff43477bc17d98550793c1b07031fb40b8221d80f69f2f671. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/US7VG1735140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01490e61a065cb474a86caa81dd89e33d0865ef36e21857b96efa93769106e9. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/US7VG1735144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27538af6a794d4032d2c1baf09ca3b35ec9a0d61b1131a7cba98b988b2aaeba2. 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/US7VG1735143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f46af07e9a7d979d2d48fdcde7e031d6b113aa11592e555b183cd9800bc748. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBKPL2020274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cb56b8dbffcd74b0f8bf7c6053dcc9a397ec7d1184a2236c4030b34fb96fe1. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/GBKPL2139282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb543e99ea8de388dd4f89024e7fd4b00ff19c85292d90df464ec2b04b91cf3. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/GBKPL2150526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b1cbe4a0ef10cfbde1080da5a573d4eea3e80ff5c893dfe51840e0a183bae4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZK6F2160593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b6dbdb84d9efbe7bf83c3539c9fce98f0d977c9baff9121e56b1c60fd6b9f9. 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/GBKPL2203525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b6dbdb84d9efbe7bf83c3539c9fce98f0d977c9baff9121e56b1c60fd6b9f9. 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/GBKPL2203525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d9fb0f506877970c8cc814d75851d6bc606cc8bf1ecd86bb91cc0600e73403. 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/QZN882516463.
in a vision (Mr. Hoosteen's Second Sight Remix)
in a vision - Mr. Hoosteen's Second Sight Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566663aa685343f03a97fd4e4d3e6937640ed2f330a1ef0e40363e5b5382f102. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZN882535594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7d0713f121d036b566c04d75e488dd89e8fa14f71d618574f9d25810b682bb. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/QZN882548879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d4d4162714486608a7299d13e362da75a6035ec5d5faad08f58be91d04c1e4. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZN882564884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3395ab38abe368c66ba0bc7b71c0f1cc4ed87fc1a10429d77f54ffcedee678. 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/QZN882573192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc08dfa81254af11bde43173cdce3527e860d3cb97d3522ff7c2c54fea100c9. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZN882596997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a55fb36d4eaa5de5a4a55236d2734ce8aeb2670c67e2dd3493664b85971dd99. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZWDW2540132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bb452637ca000e71054821484479db3e41a7e17b25334db812dbee7f38ec4f. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZN882564910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8876931d24f5aefa28bd85c38c37be338aa2168c8142277dd3d375ecb3e65d. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZWDW2540138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3b7f45f18d1a8e4042921538b33d4a948cfc2d91ff166c28e01c18bf6bf797. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZH6S1900612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2219ee94abac34fe150c553d4640c9932f368b43b9d3cecf6427a1c872caba90. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZH6S1900610.