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 0x9ae7dc89856fcd131ceb8b337a9a006aa9f7b619f92663ce93d5ddc36f0c89d0. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b55c35ec-8b32-4139-9d12-de301c72d03c.json and https://artists.proofprofile.net/proofs/artist/b55c35ec-8b32-4139-9d12-de301c72d03c.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 0x5eda1a50622116728f6dd4879fb6d139d1dc5144c3af9f00000e136befd268f9. 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/AUUM71501920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3f7ae2c3eec57ca3c4843629dd6f1b1b604fe4b654c58b1c53d6ab25b3c662. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUUM71700661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f2984241f8bc86012adcb8f828c4c016c32a688f42ba5fd88d63e1860f9b08. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/AUUM71700744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024b148259f84e6f25acda5cb0f0e01d3221374049e9b68a6f53550aff2e371b. 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/AUMGB2100077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024b148259f84e6f25acda5cb0f0e01d3221374049e9b68a6f53550aff2e371b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUMGB2100077.
The Art of Getting Through (Expanded Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b0e58e590df66056bee6927ee0ab515442dfca8af46b51db396bdf349cf6b2. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/AUMGB2300847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2742fc03bdd96fc772cc24a64e38f4082bb00d53509423c9cf0c244e414cc6. 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/AUMGB2301193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4555d3a9eb4261259e74bebbffdf3dbda2b990ff432057b18a651c9bfe287447. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/AUMGB2500290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d85f0d2aa47fdf4fdacac5ef524147c82a00b357a6e1fecba8546b4aaf639ee. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/AUMGB2500507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4555d3a9eb4261259e74bebbffdf3dbda2b990ff432057b18a651c9bfe287447. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:50:15Z), 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/AUMGB2500290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0566d98b7274eac78021d42a17fcbabe86bc051d58137a65db2ef4f2a2c574. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/AUMGB2500509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79027af1707289767a60318ebd672aee4f3ce80a474aed3e55500c4b1d6226ea. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/AUMGB2500510.