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 0x82d7c140f1b583efa1d2e99c1964676a6918d9857859e0e4df83e1fca18c9ede. 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/a77c96fa-c6ab-46f8-93ea-2e10ef36bc15.json and https://artists.proofprofile.net/proofs/artist/a77c96fa-c6ab-46f8-93ea-2e10ef36bc15.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 0x0c332d1616f85419cdec7c579c88593f39ca3b75e6928b3316c944414d7676a4. 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/DEQ021905859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d6ba4234f3c2360fa2bf37b5811cd78dc874bff192b441e8ff55ec61c87a18. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEQ021905856.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca254557dfbc156321fd7bd7347323cd410dc2b561d0cc358499983214aeca4. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEQ021905857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87948437f2118098af4ed11dfb9f102bcbbe16812038154b6ea906005067e10b. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DEQ021905862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747fedb6f73f15b8d7c770d18d0217541c49def6fa9fbef106eda39370c8738d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEQ021903086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c23b07d106530cc7c2e0f6ce7cd0a81a504c708af6cbde0e71fb1dccbb5fec. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEQ021903087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64f7518a8a7e12b2ecb458f307b8363cae8884cb1be0378a17c97a5d08643f5. Chain 2 (Bitcoin): anchored in block 956970 (2026-07-21T23:31:13Z), 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/DEQ021903088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03a97d799c763febaaf19a888674f415a8b60ef549daf64dc8ae618d2de44d9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEQ021903089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3eae9b5fc5395818a3351abf1071a7f4c38295f0a4361ca1e7081427d1965d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEQ021903090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41131a0939d17ba5cb67e758111967092224e54e54243abe881661179bbaf494. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEQ021903091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f9b4c7ea8b80d5d1bac89150a8a4c4f43b8b2f0f3fc3ce110ecb3de9086e81. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEQ021903092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491d3d739bf9f148f7f041df3dd7e1500138eabf8d8c0172f97645a5552a9191. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEQ021903093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916e7e87dfd8420aa3c918bccda08e5897c65dd1c83fd476ae56e7dbf1b278ab. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEQ021903094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930085401032a0c4d48c0da2b283fdb459a450e5e35fc14881a91efc472f8bba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEQ021903095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef97d6a4315b0d8a76cadc1ae365b720b1021e8e9842777b8933460fa9043ab. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEQ021903096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf03fc9d5d98c8424e0f851ec5e5d0b47362f68104ab4e1b3f11c368d2da443. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEQ021903085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00824e97a20b84460390a05de948f2f5e1f9c1cfebca914d0d2e811cb67f9b9a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEQ121854992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31ee0ca8e39002bfaca5a409b635b3c12463a28e55036aa8ff61d513e6dd77c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEQ121854993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa811cae2c3263d83830ecf773285ee1da4e18595b42b744944603c06dfb8f70d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEQ121854994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4185cbc171346b8d0376c32f338eabe7bdf44c5fb9857cd3463155cf1f1c8e61. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEQ121854995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e69c8f66a57b5383a0abb8735e8a2b285b9bd2c92fca6f4cad2168b71d47ba. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEQ121854997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a81eedd09578b63a57536a7c6448b0505c241a2609c56f2b552c44d723a6fe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEQ121854999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eed370ff122be980085e041885a529a6216453a27168e7921f4dd6e2a8a84b3. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEQ121855000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79c52eece3071bf400ed22728a19dda08357a2a8ba935d0fc4f8c7f2f0a133c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:51:15Z), 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/DEQ121854996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6609cb30352d182dafea92f38de675c2b630be7375cfd1a78c1c4584243bd34. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/DEQ121854998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7ca80c4a3ac211adfae8e6463d602deca0f21a416137d72ea051f6ee3d7ec7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEPI81901695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f1f49610420b3d3cd3c4dba3ee030c703d47280d70e1484d6a964b8d41d363. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEPI81901683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e4a6491bcf2b535d1fd9c538839dc10af1c87e603c18cee426670c8536750c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEPI81901684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e694e39c687d7c2cb975deded48b48edcc1eee21e0fe0e3f3e7144d638cd2c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEPI81901687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c30e36eb86a2570d993059fa62929a2e6fee71dd7d0cc704ddaf7d0f8c8f45. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEPI81901688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0479febcbd52439a42cc64f3334b83c6d062aa063569d33d6b302556b667e4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEPI81901689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5bddcbd8d6622eebc579f230b7c9c2ae50f41fa6dbe82c429335584244ab3d. 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/DEPI81901690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eac65a42c1957e023512ef5222762cabbedbc875e6672790bbe39df8fd4cf3f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEPI81901691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfeaa409ad57d1d0c27a3e032a951f62d7d8c400db08f2336f52776cf6127fef. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEPI81901692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376835d2dac82ff53e6452d772601f6f7921a9d3127e612ffd5476ace183a474. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEPI81901694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0766ab7cbfc351e228be78281d3f18c2a9a597db97c80de19a395a9e13911196. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEPI81901629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe65d7b4f0c8abd7be57fed3f5118eb8737107a3042c0bab544fe69c2d146375. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEPI81901693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed27df1ceed93be1bff6c4d074480d002ee3f36dbe1b59c761076dac03ef583. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLPF6681873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdc6c5cfcc3048f43fd3a05df826c3668faa6bb40bcdd631058d3ac53fc34c9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLPF6681874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6f8f3c6ce27f7a62342d9970a08c2a03a7279e0df9dea7fa02538956463714. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLPF6681875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1736896772f8cb6f73285bd119ee0fd1e9985b050677cb7b1914e04e5fac88a5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLPF6681877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7765e704874da740703ba84f6cfa9175c4f8dbaab3da2cf407627fae32e3b23f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLPF6681878.