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 0x335f4006676bb09a04629a43fa1adddaea1be671a8d75240eff5429b47453e04. 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/1e15d906-9fbb-4ad6-a14b-da00a2339dd1.json and https://artists.proofprofile.net/proofs/artist/1e15d906-9fbb-4ad6-a14b-da00a2339dd1.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 0x296af0040d697d06d9de76cbd3b6be2dda6ab51efbc9c3e12ffda14216b7eddd. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:56:56Z), 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/CH7812353025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646e765a084aeb3803be8ab3e4b0038e81d92710a23f12905eb75c35bced85ec. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/CH7812353027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7bd9e931ab51344c5af78532aad63edc608f5276ebd4901f90fd6a9d2b8ebc. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/CH7812353030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f41c2607b0be9fb1b89299aee30f59a50cf4c4ebe2699334abfac79f9cf5178. 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/CH7812353032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5666375839757b000591dc975defb1fab469dfff6bda703e13c84f9321e8bc94. 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/CH7812353034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cfc3eb7115685a03e69e77dccb3fd1217ce9ed68bb97fe659bdb22ca980288. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/CH7812353035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db58e288f51591d2e55be8b9c09ecc9c23f91f25420b39592ed0cfe25c689c9. 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/CH7812353037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b36d1a13e0db92a4449f3227525022acfea8213bd3ce30dee7caf9f26b42df. 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/CH7812353039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b5624d4809a1ee25984d9aefccb6006e5d033ff3ad0d5b394f38b655dd27dd. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:57:37Z), 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/CH7812353041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a2e26d852556a2b7d8dce39c33b5c0216b7e9dcc3b5a93815cbba8410aa3f0. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/CH7812353043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9355d297e470721ac8a01094a6c424d9adba26e5cc696f9225c9ad4d00d7efc. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/CH7812353045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3182e9ffc2428d4572be57d616488945b213ff03b6cb7af79c8ebb412b16854. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/QZPLR2045736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891fdd4364c47e02c3685ca38fc66b6a334718eb0cd7d3555d1b4d4e307336ff. 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/QZPLR2045737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213dd91463473b43ec6b7ca82f6c7fad66035849f11712b026252b719fa60645. 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/QZPLR2045738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bb115a931aae062444a0899dea9949031d6d9eaceaeec2a9ed47f79f695271. 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/QZPLR2045739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a9bce76d1162cb9c412b6b09e93c404eba14c1cbb8c39ca0fa4227caa6a075. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZPLR2045740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa95f6afbbe5497aee22ae2def60733b25e33c010761c19c37fd0eeeb1c35150. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZPLR2045741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993ebe731863adcaa8bdd40c9928ea70e805a19ee9fe7c47f4bffe4521234218. 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/QZPLR2045742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33797484d3a3567be61d4b798dcf6de78fdbcfc78818462251d3d59e39d1a24c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZPLR2045744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7366135e561e8c44dea80981c79439eaf612233d7b39cc79236195b81b62663. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZPLR2045746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282636c2311dc3968f37c49099d7a2ce741d84c12c746beeee622e5571991638. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZPLR2045749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe906c9bf1a6fed71734678b62110536ad0021f01c73a0f395e5878c3ce87b94f. 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/QZPLR2045754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d86ce9aded658792d45258d0e263e3ceabb23da2677e84b4838539b9c97bd18. 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/CH7812222079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e042d5730c7e2191f70277eb7d6ba74ca9e6775bc61417d11356e3a76519754. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/CH7812227317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b21d6c7fcb865eb0d0fd4ad874d8cacae195af7d93d24d7ca4971625a9e4984. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/CH7812227333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c9fd9570e034c4276b6febc17abb77b2eab65c010526057e3b1e62ceee86a7. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/CH7812227334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf405d958117d7351aef43445cf05cb64ec4043bba5f156bacd1eef86a9c650af. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:02:09Z), 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/CH7812349233.
Brothers of Blood - From "God of War III"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c7df73359aed551eccb911644febdbf1bfe1fd4d62d33ac88d06ea1533f8da. 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/CH7812349238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2beb7e564cd362af0366cb12ec494e9eba1ac99fdf5921736484839fba4b6f2. 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/CH7812351203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ca788dc3e79c45904e80886187af08283303a74c278bd35b0e6477708a4eda. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/CH7812351204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874cf81d37b1668f1cfbce9539be296fdc27837b00164d8d54e24ea085ce64e2. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/CH7812351205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65026dce7f11e3c1ab83f4a6562d9147d2fc168715e3f1331a6256ded33e788c. 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/CH7812351206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017f5d36acf7aef19ab04ffa792046c6efe218888aa0cf1256d68e6049eadf54. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/CH7812351207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52f791adcbdafc08d6a97afda0d8dfaf6195fca3710dd85007fe8dbe6c61a93. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/CH7812351208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815a2040ac1975d3e32ba2b8e714e13f5a36f587c4ac7cdbd479e8d427d82c9d. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:31:17Z), 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/CH7812351209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ee9947d7b5d105179477fc4f2efadb66721c75b5e17277a76a09f342898607. 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/CH7812351210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c53dff666b2476be7bed972c123b1e2d720a1d9aa168995d221d712ce18787. 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/CH7812351211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9641700f98e6e367f1c61faa414a115252854912a3c18e559158dfe933a46475. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/CH7812351212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ad908273d1dd5fc896f5fe502e14c7fad165c5b2f0936a9a9f2c0530b8368f. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/CH7812351213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5424700c289c6bac74a2bd26a7551d451cb1b6d26440b83b8405c55a81ded36e. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/CH7812351214.
Hostage - Connor (From "Detroit: Become Human")
Brothers of Blood (From "God of War III")