1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x855cf5b157c16741d7333f17d631d59d38dc5b4396208c58028c97df701f05ae. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2788db1b-e2b9-4aff-a665-a76deee82bcb.json and https://artists.proofprofile.net/proofs/artist/2788db1b-e2b9-4aff-a665-a76deee82bcb.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 → block OTSBitcoinBlock must exist at that height 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 0x6ed0dfdc482225964320baed7ee816a9f9415509d76b53af3c0b43294825eaa5. 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/TR0511503475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333fc365698f8a321829e85d5d2cc1409c77652fbcbf7c9b340413b350b91a76. 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/TR0511503481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7255bab63d222cbe375f1f250b194ee45c906453d4b01a25784d80ccf8c9280. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TR0511503482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfb13819011881d59a86733758055cfc5eaaf5f4cbb154e1f8ad5dcef60c0b5. 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/TR0511503672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec102acff30e0c1b0cc65c7204ce0f4f2e8cd878930ebc0f09f667ce9243724. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TR0511503673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf09143bb54fd9a3c01bdee81a29e9b84f6be0d9403140f0c934186278e40414. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/TR0511503675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf621651e67168fd0421208274a9e7f8d0a2a13ff1f601b2604c98b9f0625066f. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:28:36Z), 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/TR0511503492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f947285858bce7dad454e36ac075cd00a9e9fdbfa518b076b9cff4c0f893ea0. 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/TR0511503507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a80ec26785b5fd65691a86be63a97526db0c65e2aa7fcbff6306bab73f8502c. 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/TR0511503609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571766117bd0fa31aea371d4e0e49ae26f779d2dcda62bc629d077cda56cf3bd. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:17:35Z), 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/TR0511503612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153bcb677f45cf254d526d396e27ae4d202ed59ae68e07aa102365ca68d08c37. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/TR0511503613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4789ad0d9e4f7ecb2b5151606637b29729350d52bd9a5b39041b393018d88f. Chain 2 (Bitcoin): anchored in block 957692 (2026-07-12T10:37:51Z), 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/TR0511503614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b159ca8ac1a68378ad239fd42018bb510aec313fa79e78f94a942a2f2a0ce08. 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/TR0511503521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3ab2cced979aed1a50ef5cbe6977594bc354991ccb3fda3a2790f0d8879ed4. 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/TR0511503533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d9985d3050504d11709836e29e932ca0425058dfe27d9a85f00a8e34d8f4f0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TR0511503552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd7c0404275fc0dce0384a3c8b195ab7c611ba12cac7a46d6d7b81370623282. 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/TR0511503574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee96e86b358bb134b6b88c9d9c18f260a7b12e8e0eaa7b4bcbf23aea3d3394a3. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/TR0511603886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c0f68b6e0820a346cc7d60048017f7d1f4e2bdf81ca901eca0af17ebd0671c. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/TR0511503638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6450083454026daa4416305c8b564ee7d9162f04b27683e874881139603b189b. 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/TR0511503639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db775d9989c512bf70e6baf872a9838a7d6b83c15bf157309ed9ed19d2c3a84. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TR0511503641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9d7f794168d1df3c906a8782e89ceafd299bb6addc082934f1b3f6d9c62a06. 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/TR0511503626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5a593d8ef75afc718a9711fcccc1264ad59eb306a38f5b74b15bf166e7cead. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), 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/TR0511503665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848a14e8616e8ec4e0e48f51678a018a242775d3411443963a35d83f275ad0a7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TR0511503499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e6867d03fcc90963bf9274f0bcd24dc2bdcafb1bda9031fdf39776222c4f69. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TR0511503548.