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 0x567c19ebfa96bba373cb63097e442f2015a5e274ffa109222dcdd469305c475c. 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/789b5e10-439d-489a-913a-48ce28b13dee.json and https://artists.proofprofile.net/proofs/artist/789b5e10-439d-489a-913a-48ce28b13dee.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 0xc8452a59475219316e5e397f1b1b03514ec8681223c027dbda5432df7c52c623. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBMJG2216240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc2a6ae6ff88652ad95f623bc2b119a3ff56bb57e3dcf4863935e6eab5c895e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBMJG2216241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ce57751d4a31b543e1bb7624b2cd5e238b1ef0241ff5d9142800eb988aa116. 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/GBMJG2216519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1935fff0193951eff5ce728fb721938a521408c7a01eda3e0d3035f496991804. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBMJG2216520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5fa0f28ef5106634233ebe8982373aa737a6c13fab462758a7438bf73ccbe4. 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/GBMJG2216521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c4d2e9ef34d5e18ede5170070bea3b3836b54cb9aa60381ccc5332215dc9e9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBMJG2216522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21da02e7d43fa69bfa691734beba8f1360cec8094f148089340df403ebe4e20d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBMJG2216523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6118b35d3b831e469039a079821d5ac371878a863034822e9a1ca91458f9af4. 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/GBMJG2216524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca733ff5f69dc8841c2fc68bed26e3e8a356c98ba9284ee3e0f3938b60443c0. 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/GBMJG2216525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e9d8e90ad053ca1d9eb2e3e35ca33b953d13608e441498d94fe1a9b21a5cf8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBMJG2216526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae30e21ec7bb640ea6eb6dfa04c78986ab2a97e0985cf67a5c4567efb84c499. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBMJG2216527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e14991950c1f4c5e80367e3248480de36b9ae8494ce257e09585fdcbd8de96. 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/GBMJG2216528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77c82d6939ec2aabf473468775d0003bb19c1b72bac6a8bbe2b26a66e3fd668. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:02:39Z), 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/GBMJG2216529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6dfc83812dfc348187d6e1a9dd165b00a9936dc6791a9ec8dbae2b019197c11. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/GBMJG2216530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e781d8460d549de2c9c6b0cea6c42a6c03f27741cd65a0811085eedb1caa704. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/GBMJG2216531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dbfbc08398f3b66b3f77dfb1645d5c93c59bdc577213b9df64d43adec9d159. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBMJG2216532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbdbb8b7cfd7f97d9361c1170e92400a43097ed461cd571452096cee28a980e. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/GBMJG2216533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f10989a2659b26d565e0fb1a11dfcbaf8d6e4eeccc4f169f47585a3f9988e9. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/GBMJG2216534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbde5d54ee78588199e0d8a227217d5b0c50c2ac72df837d866bc050cbe49055. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/GBMJG2216535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fb4731d6ec2e60cc25fd29086b0024de72bea3dc57a28c3a235a8b421bd334. 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/GBMJG2216536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dbdab2b07c2dcec77069361572f0f786f59f9198ab321542a9109d45b66656. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:06:07Z), 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/GBMJG2216537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6b5cdb0b88162bb995c6252395ae298c3e744950f7f4e5e31892e77d6a7a2c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBMJG2216538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94540a19960e11515c47215d7cc0941ca765fbd5127184eea90308042b54bc17. 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/GBMJG2216539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9c692f1405c80bb666e0d8d46f5ae5a5bc04edae13db5919fc163539b7d658. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:19:27Z), 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/GBMJG2216540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156eba6431ca01cd582fc5601b0a7a0ea5eb31ce4da18b055f93619c5f824108. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/GBMJG2216541.
Distant War Sounds For Sleep (Loopable) 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94f404ab31e3271fd3f9b6f774df97c9ffee6f758a386376fbd15f263fee10d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/GBMJG2217030.
Distant War Sounds For Sleep (Loopable) 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71782bec051cf74be52bb0c209fe36079c3ed10bde7049f12ff0731ba5a88d95. 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/GBMJG2217031.
Distant War Sounds For Sleep (Loopable) 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e93a2cfa87f2f8fba074d0cd4af310e3e1680293e9acc82a8c23daddb5aa6ab. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBMJG2217033.
Distant War Sounds For Sleep (Loopable) 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bf22323165357858fc7948015b00393f5c71e20ba3708e80d55f664b8fa041. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBMJG2217034.
Distant War Sounds For Sleep (Loopable) 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0123efd9737bc937d12c62c9701e985adf93869d0dc1120a6e1a68ef699ef941. 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/GBMJG2217035.
Distant War Sounds For Sleep (Loopable) 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634a5e125dc47dee4dacf87e99724589e3e1f517bfa4ac64ca270852f3f9b2b2. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:49:41Z), 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/GBMJG2217036.
Distant War Sounds For Sleep (Loopable) 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31396bb91bd199bfba914c29895de890d1d775d75079a512da62e043b7508594. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBMJG2217037.
Distant War Sounds For Sleep (Loopable) 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc517cc5d245b9f87a78243e9343efd80c027a7fb3cbb3adf6bf724fda87a2482. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/GBMJG2217038.
Distant War Sounds For Sleep (Loopable) 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c9d99976c182df30f8c20e999eec46736c5794b13afb027c8173e018e4224e. 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/GBMJG2217040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b0ddb35c0adb6c4df553e38a2e08c54987a9b0c25d1bd8ed610cd855e67d67. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/NL4CP2100155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08f9b812c963803ca61457f5464a4aa91f5ec7aa0cf47380d467f9c16be4804. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/NL4CP2100153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a10cea50da043ac2dfe2c0e07c5fed7a8fb21ed63ebeea3e8562990863867d. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:44:37Z), 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/NL4CP2100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763f56a8b34b5cf4ca9da6a26ec32e693e48cba12d1e0971644921f8ba8c4d00. 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/NL4CP2100149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1676bed47275415ff8dba64a330e1819288f68acae46dfe931bf3c1975d587. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:33:57Z), 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/NL4CP2100145.