thumb|A depiction of Idris visiting Heaven and Hell from a Persian illuminated manuscript version of the Islamic text Stories of the Prophets (1577) The afterlife or life after death is a speculation
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 0xfffdd72f2680ac809888d5e9479afc79f43d885e6ebfdd3475e8e71ad0126d63. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa277f2d-0cb8-4ae1-a4a8-43adf21e7422.json and https://artists.proofprofile.net/proofs/artist/fa277f2d-0cb8-4ae1-a4a8-43adf21e7422.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 0x15d831f1f2e9a9bb1abe1111e1bff5c47aabb8a4988732fc538e4c478f378c28. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/US3X59701402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a492a3a2e01e1a11a03b5cec86d547eefa654576cd4c3ebfcb6d8042cb12dc. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:36:26Z), 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/US3X59701403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91654e5014d6b530fa05387ac73684cd050460a3904f1dd8ad9eb315ea20cb6. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/US3X59701405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb1afb856c822f447a6ff342d951fe49183a17dbfc2fc392d854556afd7f0be. 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/USHR21812001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37120350f1ef075a4aec34a445ad9c1709eaf79c1253393497b7f107368d9262. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USHR21812003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac5b75d2ad686047566443026e872c383eadb9f9b4cf76fd013d720958cfcb7. 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/USHR21812005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aad0efee461be47242b6e79dd8295f461711a19ef7da4d819ef1a956a390f62. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USHR21812006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e99c5d5f2f6917a22f277752e9d178b63bc8721a557badfa5420f0887cf4ed. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USHR21812007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c2c1b1ee6f6fcc9346ffa964ffcbcd5e5e6d990f08b3d19c23cbe822cf99de. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USHR21812008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5b1a427c06915468c38b7a0f14a4ba8e51e60e2458729d71f6f64d8a2590a7. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USHR21812009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990be9a7d972240283ba314d4febc816e650b168e7170ccb1b7294f8b859566a. 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/USHR21812010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee624814ef286eb693112faac81976dd4356aef6b3b7c9e3e4f2587cbd7b1be. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USHR22112003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164299395044b7c7c94b6764503e378e75c32c02db10616f04627175cbd45898. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:53:23Z), 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/USHR22112004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0440c0f23cdf993a32efb29cdff1ad851a547e4e48373d7e2f4cbf7350657637. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USHR22112006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f8aaae2b18baafc782955bb128f4894c3d63256632f4fe64aac9f764cf2114. 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/USHR22112007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd3ce197071b18ccdb292c7798543e6c19678632dd25ef363b8aaf00835e3a6. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:17:50Z), 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/USHR22112009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad169e5398a544148376ce088a91575818a51c2ee80fb47dec6ca97425257ce1. 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/USHR22112010.