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 0x997265378c7f09107516201ffe63cf36f70da3e9cf522874a4b59b3a6e39a076. 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/88229b28-f717-4546-af0b-5577f63ffa81.json and https://artists.proofprofile.net/proofs/artist/88229b28-f717-4546-af0b-5577f63ffa81.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 0xa0084dae3e924acc813db48df36f46a3058db96fb22154b8090ac5044c436dfd. 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/GBLLT1711703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001e8e477324edb671e3d851c454a36cedbed9d7ea66364b7d443d2ea4f3e6fe. 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/GBLLT1715473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba3b19d3581360f84cd9344481760c8eee8c73745b864cfeb6ece43b959d571. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBLLT1715469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47dd113dca6ebfed23c696d798176ffbaf2d3c2458f013564c5f90e23a574778. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:12:19Z), 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/GBLLT1715472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1cb64ae7afa973d33cdd619dd671781ecd1e69089a549539673b95a439263a. 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/GBLLT1715474.
Independent Woman / Bills, Bills, Bills / Say My Name / Bootylicious / Survivor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00adbfbcd4cfa8c54d1d33f48cd0e58b3b2b67840a3c47efe1f7bfbf22f2898f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBLLT1808485.
Paris / Black Beatles / Adventure of a Lifetime / Cheap Thrills / Wake Me Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1166eab7e29b3d9e5149fb2a3c184673e26f02dcdc3cf452bf7ae3a39033070c. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/GBLLT1808487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f1269ffb7db2e5968556bb9196cf55dc124f1eea81e0ef2c12861ce58e12b6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBLLT1901559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3aefc89c2bd46f37a716ff7260706f8c5daaebd681db69194de7232d790307. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T14:58:25Z), 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/GBLLT1901561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe060d84fc51e11350e0d6a4c407ae9e626f8ce9d8efbcdead7bf62f53a160db. 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/GBLLT1901562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b353fa2dce4b2d664652c3e9d5bf305b2b6ab724f861a0f9b3bb77c50bdcced. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-17T04:47:49Z), 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/GBLLT1905775.
You're Not Alone / Children / Dreamer / You Should Be Dancing / Faithless / Sandstorm
You're Not Alone / Children / Dreamer / You Should Be Dancing / Insomnia / Sandstorm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bf825ef2ffd648ac7fbd2fc1c4a58ee82c85d3166bece4abe1f24e6eb97ea9. 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/GBLLT1913170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a009e3daf3e04adc17583b68176259b319dc8a6b405e8ca61b7d24e824a8ea2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:20:45Z), 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/GBLLT2118888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8923fdcd565c2c963d1e57feb5f397642e05e6ef4a7d7aaab7069161180de90b. 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/GBLLT2131752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf32576f6a349f7b4913871e3124b9b8f42d296813105dfcd1d94137d5b5eb3. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:41:38Z), 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/GBLLT2136372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027d0e721df1bae924820197d261415382fd939c65f97b34c33d7e136f38e43e. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/TCAFY2147636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f51fd7cf3595b545dea1014c7dff3818493d76f077c8394da01b29083fc7b6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAGL2294506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70bcec0bfecd91e7d06879dabf787154899e0d540a23ea6a888b4aa11c49aee. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAGX2365294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02d61f6c4d4fb073bcba1122eb2ad087fb2b784f8dc9269c80e9020529c7778. 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/TCAGZ2392804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d53890fff6741b84dfcc92fd93af07cabf9dd16078252bfd9356cbf242b4d8c. 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/TCAHH2322083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3de0a49a10a81132352d6f47bd6ca71405c683c7f9c9a8392ec26d4565d2cc9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAHM2383017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167a84d80265b3b463a56319660c89620a96b7d2eda8ac6b80631a0af1cfa1dd. 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/TCAHX2458357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11946717d4eecbdfdd69ccc0cddd1767ece718822fd2ca9a4c4f079057189235. 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/TCAHX2458416.
No Scrubs / Family Affair / Scandalous / Yeah! / This Is How We Do It / 1 Thing / Pony / Naughty Girl / Shackles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb4c160e9a15529209e47564f992395b749a1f3e0018916f5e4a3ead3e80c76. 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/TCAJA2421587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc1f5d2fd2d87577a68fd5f662e947c81641e7d55e2cbd79bd7272ba8f6e2c1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCAJE2527295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de78e230fa960e2b3e2217b7b1f38db48440a0effbf200f1dcbdf620c99c031. 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/TCAJI2521288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c99eea776b1a9bdfbd775d94545d3529d6ac37aabe06adb7fbba55cc95ced6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJQ2548629.