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 0x734ea36e6145c1ac3d0c6afc875594e2f4ff3b36e473d7cf90132b82f2cf856f. 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/5622d90c-4fc7-4fbb-b730-96161cd3fd8f.json and https://artists.proofprofile.net/proofs/artist/5622d90c-4fc7-4fbb-b730-96161cd3fd8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Last Out(9/7/23 Northwest African American Museum) [Live]
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 0x085ed94672d2f9933ffdf5494f06ff5a1f15312525c937e8ef5fc22b0ac1a357. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:53:23Z), 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/QZTB92355686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb91eb1d6797022a4a9567f0dcec33deb70d04ecb39d0e5003266c9311fed1d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZWFQ2336675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91b7cbefd36a1b6adb4f4436243245ec5ff4e9652d9c12433d85082cb49bced. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QZFZ32437264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791e3cdfad65cf05258e07f8557ef387ef0cb3dcc3da97f7f9f9ee6e0a610e54. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/QZFZ42452261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bec5e9e0d4d6897ceaa3676edbfdb592e6c44b4fab79c8cbac48d4acd1d1fb3. 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/QZDA62414344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9241ee77813b36cbd66565c91f2ff29b7ea66c0059bdfc5752a883f53b43ff0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZES72406461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ff2f47332ddbe92a021c2c6a149b371f28c74ce3d2aa43603e3bcab5e93072. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QZHN82418425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ac3075d35a8e7eeb183080b21ad6c3468c1811e95388a219ff87cadcee13e5. 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/QZHN82491841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b570d315c90fa878dca0ee9c38e533576ceafeebf1593cfa485d2c8fb9a3e7e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZMEM2471223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a573f1712320c5e5167286ee8ae53c31265866c8c781c434fe3b9186c2c9749. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:55:28Z), 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/QZNWS2481016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786650122edaa2bb6cecabc20e4710c1b08687499de80c113a7ae034dde789c4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:10:05Z), 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/QZNWX2441453.
Girl I Like(6/19/24 Northwest African American Museum) [Live]
Girl I Like(6/19/24 Northwest African American Museum) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd039737f6a0c44a734e3704cd5f09194fe9db743b56e9e9c1e065443abf586. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QZNWZ2452705.
Love It All(6/19/24 Northwest African American Museum) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c23f6cfc7668a67d852ec51db883d8027fa879a17ad434c39b09af2dede7293. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QZTAS2408342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78be6d44ff46ea376b3593e05c4e6b09c7c9b42327751ed92cb400f22610feb8. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZWFF2456710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a417b516f59e1b35ffda3437ac435e0c5109e45e6529cff5e5b5107d272c283. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZTBD2465673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5cc0f6a3cc78f71b5d321efec9a0e0db60719b4559948b090a62a507e446ad. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZWFG2447145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305ba10c97f414a530bbad5b94837588880f7db4c0387dce4fd14ec6ce47004a. 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/QZNWQ2405354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eba5245aae1fc55eb6faeacc39d4afafb13c424fd8b6106e173f1f041c59e1e. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZNWT2401628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8883bc849532885f44f069a91f2b63e9a1025fa7187644b68b43c3f9499f5f. 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/QZTB52480849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0682b6430fad247320a872720da116d8299d58e640cc2f928802e35a609bbaf. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QZTAZ2443974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca825e88aae01244846661777a2d172e757083080f35d0ad1d06c5616bc3a7db. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:13:36Z), 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/QZTBE2450695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7b0d377490c98169f67b5c930db4f0e3d5d2413f28bb3eb19132d34fce3dcd. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:39:15Z), 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/QZWFN2481835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45997c4cef1b475cd99259ea49098430a65f69fcdde88f98eb30e946fb8af692. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QZTB42468044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5107a688cd30fb2329bf1fd0a73d64e23bd5adaa50ecdf29d081ab753e0871. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZTAT2408782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2988b0f71eb344e812139b82bd4b886c5a56cdd83ef44566fb52170b234c89df. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZMEP2470211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6d3d73704b227f1b08d1387bb1f47009641b3e91e55c5da108f40c75629a35. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZWFW2403806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892080e895b9bcd45b4d4cec28a5a6a803a975480cc22504761b2063f7e8ab95. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/QZZ762425547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59925d94967d1060ae9b366d593b473e17965d7289ffdc5e3000441a0cadbac. 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/QZZ7X2484540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f780eddb06c273db7769d9ae34abee7c7b58dc9ac943a44433ee312eaed795c. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/QZES92582725.
All Now(6/20/25 Kenyon Hall Seattle) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b455ff26bd43c12958986a9ce135a2307f394c6975bd21167dedbbf354be941. 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/QZWFW2598538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ead745568541f114e13715b7f2423b5e2566b4d3869fc2b035e26cb73fae34e. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:41:16Z), 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/QZZ7X2565065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8151083b7c349f176b0b1b72ce08d772021c8af79d34b67afc944c5bbceb4bd9. Chain 2 (Bitcoin): anchored in block 957791 (2026-07-13T02:46:19Z), 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/QT3FE2595366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3957bb55701d1d02dee93de61d423c9057c97b5ab90a89be6867ff8923da8a4. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QT3FB2550812.