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 0xf921378bc797d6cf396d5854e02c8b5d70c1258917139c2d72f235c26ad07db9. 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/edc8a39a-a400-4cb8-8bb5-58dc89cc3bb3.json and https://artists.proofprofile.net/proofs/artist/edc8a39a-a400-4cb8-8bb5-58dc89cc3bb3.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 0x905f5f746fa2239d8fddf0ed1a0930c30bb7a6f7695987915016008f354da81c. 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/HKG732128654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a424adb933a63ac699456789beda2e74ef2d253f4bad68a28e92ea8aef0eb01. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/HKG732128652.
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 0x234503c38e98223196d87f5cc8fe8da0c09595e457feec485f0f9b9f617351a8. 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/HKG732412996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9805ec5df37ddde561f6c6bd772f739d56cf93289d511efaa116d91679449c7. 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/DGA0P2312785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01cdbda21e5e468c9603631696ba5ddd61ae5f08619518cf8bfbef880794e16. 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/DGA0P2312786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04573e1bdb0b16730e2658282c5e4fce66817d0ec3849f7eb114167f3d76c118. 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/HKG731647296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d935fdd4220cf5d68a5dfc042587c1c69b229a9521f055dbe3420c9dcba1b8a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA052368040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314a5e4ac65d40b7064868ca6b1c681364cef5d0843b4996e495d50da3293064. 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/DGA052368041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeac21de7ddc86502b8de9127d72f5d89e6912d195150ec83668100384307860. 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/HKG732332424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f6411b05d21b6bf765c9d11757dcb366b76ec3421b50c86b2a1a8f54cb6f5a. 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/HKG732332425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e11e61c58903a87b5673bb3fe217ea57d9460252e7dbdc6a79f08fe8cfa6268. 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/HKG732330013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1f102859a451531a1dbefb1da7188bc0af9e5ff05f2be5fba2dd9a54d3a42b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR10S2376689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07694f91b7996aa4204f56a0e7eef9db7fefaea292890dfb23b5ca498fc6c57e. 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/HKG732300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc10c4f4f1ea7135a134d236c9f50fa24c15c760601c88a9faec6556b658044. 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/HKG732313274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763487b872e84d5bcd622383d67d9444c1abab1766d9a71414fd2168fd8bd74a. 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/HKG732311847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd947d759906ed37e28fce107c2316b1de96bc0066bf288a03f17bbc47b51b7e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR96X2207392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c18300985fb34090e7cb7739836ed09da4f58d45c0ac8f88ef0c541d464813. 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/QZXLZ2327136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd53f45b982d3eb0d9c1fd94e22ab4c2f648bbff4efa611411c9b400282657e3. 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/QZXLZ2327145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb035e7381211f01c26bcfd5a17bbd5315f8d802874c7086c2e93fcc0ad55621a. 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/QZXLZ2327146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245033a4fa8f62e21de09e3337bd9497c77a3868234edc4d790b1ed29c393ed9. 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/FRX452137512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195d286fa85c2c12e47e375d67d7f2fbcfe9c9c1ee29867432745d4977e3d512. 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/HKG731788301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604565fae0a28f148f622506120a4f2275c870459469009aed4d872e55f7e945. 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/HKG732295102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36a89c99f032ed23e0370730e4197c1c2df3646d6b2315e9289a6058b343850. 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/CNZ632100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b40ca69f64bfd621f1fdd695b7f46683e5a6269e35155348f974c760d842f02. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T16:38:32Z), 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/CNZ632100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2c18e5ad2ea5463db081528739aaf712a5523ab5cf3df46570a38e2be35161. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR10S2126486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ed97c4f87744a9981bc9143613fd55be2a36b80f4fffb91fec89519a469464. 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/DGA062013379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8a67d047a78155679752c418ee5b7c7c987ca24dbbdaf09b9c6887a6237bd6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKG732141903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b0439fa768f2fc69dacbd921ce4918b0e9f6a1598781e0e0377db6c85756b8. 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/HKG732128030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fbce37a532fbd2c224fd8007c48fa8d7f2877e17136292b3ca4906d04ff81d. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/HKG732128032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6faddb84e1abd6ff6d995b71539bc5e6d9caad72cdd34e01210404522ce58b4d. 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/HKG732128915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b40ecf2dd9a46d89099e6c92d10b78e85988cf873e927b5df6087fe54a8c5f0. 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/HKG732128916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a0b02a3dd514a2b0cb9e4aaf0e330721a82ea2fe17f9d51be86f256e13a99c. 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/HKG732128921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6817eb0ac8d47c394120008fdc4f137be1f4cdcc2879e6355f537b9cdea83b76. 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/HKG732128922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf094e5e0364fb7a8d3dd34bd2a48b3a3b2b344c4305c1cdf80eeec91babd6c2c. 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/DGA052414072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20664011d841cefd62cf561f9dad033d594ae50edab2041c9bfe26215f5ba0d. 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/DGA082441031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b097c401ce97ab1d50321c667c5862aa4af66251ed98ba8c9e3f47d8f76e09. 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/FRX452447009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b5390bcc6131ee3f163c9d02eb439d92cd99b07ced85d63dfbcf91144ca233. 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/HKG732499271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa881dfbb2f4fd9ae50b5c232babdc4b79dc128ff1bf002d9c72e22b779d16b83. 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/HKG732491743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead33a69271f0b30ce56c087546835fb5463b590979ff95b7d4fda88d434f7e3. 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/HKE022303173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83416d4fd0a702467b0b97af1a273dd91033a3ca1bfcfd57b830c951bf0d5294. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/HKE022303174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf94161e2803e3426f033f387fa6ef513fb95e8575979ac2fc0cfb7f6ffd0ae4. 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/HKG732487454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b7156a8234233669c8b4c7302a7ed720b21d041a81bf298ace20c77e069b34. 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/FR10S2543808.