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 0xa1d4f453c5d4951175d688dd560d0ff015b4d83a6b9cc3c872d92046bc51ead9. 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/7d39856f-d05e-44ca-b2f6-3c4c602389e0.json and https://artists.proofprofile.net/proofs/artist/7d39856f-d05e-44ca-b2f6-3c4c602389e0.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 0x3021ae8d9cdcf1aca09ae34ac7b0de040e0899807c0b583bc591d8995a3bced5. 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/USHM81873302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef7166f53b74e480edd1c2ed277655c3f8eb63b99e048a617e59fad2d2f1d60. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:28:38Z), 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/USHM81873303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9b179d049ed8fc59932025cf6a6391e36f73863d21620dfe6de51fcc7a4495. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USHM81873305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7107a6647972fd3528ebd6b6f9d06bf6265fe7e47a3aa7bfc5949116b7807a18. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USHM81873306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe20116155e6d7bcf3e88eb209ad6b376b25f062d80a6931b8727022b84a15a1. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USHM81873307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1266af3db495e5070c570955b57c85b799960831c87baba26588201e309170b8. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USHM21980689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e257a586b06f659088c4a95fa166553109cd71d7f0de76f13695969353ea0d. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USHM21980690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec6c95b8aa41bb2df798e3a29e7d8af664150b723b80311b0d3e5c6857e6b37. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:04:18Z), 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/USHM21980693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843ae36d4bd9f43b8c599da4726f1ccc519b6d0f63f96dc2f002232fa8e2ecaa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USHM21980694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46651c67500507b7aba69c117b261e8054f4f7c4372b0a6bdd0d8c2e1c0b821b. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:53:35Z), 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/QMAAK2063333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4301435261a228dc33c2e2703f2880c1b0d03518895a02ceda461f295ceb823b. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QMAAK2063334.
Sage and Cedar Adorn His Antlered Crown Aflame
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdb3c38d37196904c74f88c0e9b23d782494f8982fb226fd35cf13a8970e257. 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/QMAAK2063336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc8323dfd82c5ab5f6b96c494f458f07437d3608490f6c08dcdaf7da283fe28. 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/QMAAK2063338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c2bd2eded056874e237bb0574980cc5e9ecb593c95369247a01e38bc0f60ab. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QMAAK2063339.
Wanderer, May You Pass Through Evermore Verdant Realms
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b959f05a6800b77b1957a348048de234f9afefa410f58dbd4874689404cc142. 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/QMAAK2063340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e61265008d46746a7a4a850027a899bb298069491652b5098d9e6c349c247c4. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:01:02Z), 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/QMAAK2063341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823af9304362bff256ca9861612367a0ac7b29754dc49f48b2c1fea2d773dec5. 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/USCGH2368615.