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 0x55cad4cc31477d700b04067b737c082bc1faccbc830b724e0ee24c9c79828907. 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/d14075a6-d9ab-4541-a27f-09fc13250e97.json and https://artists.proofprofile.net/proofs/artist/d14075a6-d9ab-4541-a27f-09fc13250e97.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 0x461ba259d1c172ea52c694f8eed0390f03712185e65f2e2583b54d9018323153. 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/EGA262203562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9bc0d1d79b256776037466546693e0a747d861b70d4dc8f1f7de0c275e3399. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/EGA262203559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecf6dcc7777b177d7edf9f356257f33f89f33c3d80b6ba22c56ddf65e8af7cc. 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/EGA262203563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18477bb7ac6f805510406aaa3adf30da4a30892a0a40828a1d1cb0535b71017. 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/EGA262203556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5794c81ca9aba753e594511ad3ecf01eb9439b8a815352d4041e60b5bf815d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/EGA262203670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2471463ad1e3cfe0eec130a88729e2cd46acf3eeff682384bf08463fb2f9220. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/EGA262203643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfad75ad76e9a3a7e8d3b6fbf24dc4e03a05c1129e1ddbf508c5b6b5dd3120a. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/EGA262203656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc554c218c43642bed7bbab4087fd9fc7cdee179e3dce847073282e3da3ffc6b. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/EGA262203654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87761b038cd6a1ad7fee543a0597fb716360bec5596e8c6fd4b04db2f308f030. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:36:58Z), 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/EGA262203162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b044b5e2013371b50b01ea9309173beb7a6ed5b2776efe6c80ffd1255b4ad9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/EGA262304289.
ابنك ياما ما بين ناس ظالمة (اخواتي مبقتش اخواتي)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64188e91f63e33425a47e9800a152498d6e8c9f158a6604b40f3d3fe21527b78. 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/EGA262305971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ddd8da18ec759022500b44569655c87591736d8b640a31de2be799aca0bff4. 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/EGA262306585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5daee68ed10dfb5d448c054c569eb8cd07f0e9957d5f34c813f4e648fa798fe. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/EGA262307024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682e2b55730de27c58583678f726e8a63f99fd549b20f1d87705a97d1febe219. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:37:58Z), 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/EGA262307062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d1f186f90f403c33446eacdfd61aae5c23899cbe63aaa7ef6d6f49b950a092. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/EGA262307740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d2e4795b893fb1d379f5036827bd970acb041179a742ba08e0f5ad164bec36. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:23:30Z), 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/EGA262309141.