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 0x3e5669d891ae98ff550a3d1b5518ea7afa06716146e52fd896f749888fda7024. 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/041e2c02-cf2c-4416-8053-4e3cc4a58714.json and https://artists.proofprofile.net/proofs/artist/041e2c02-cf2c-4416-8053-4e3cc4a58714.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
one of these days some eyes will be opened
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 0x28e4182b1cac156f36b1c1f8f4ca5d560ee2a2629a9092cf54ea38e7197d62cf. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USHK99304301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5aff6fcfcee35a902a5c00c444fe9d9ebb3eaa62fa1557c0073c2f872316746. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:26:02Z), 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/USHK99304303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdda63c946f0b53c111f1069e664d48e29796804d6630a2cbb968151beb9def. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/USHK99304307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407d4efd77be6f2dbdbb1e20d2b6d0b60fddca07668b8411b9c2452ae2312a1d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USHK99707604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa247165fb179e792c2f0e49a45df626060581c0524ed5a4ed369e014d343a5d7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USHK99707605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab9aeed63f1722d62bce4f01945850fb6febac8debd1d2655987b7042e67f54. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USHK99707606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b8066eef061c0a0ab7db34509a757153bc5045ee8b6311649d8bf4b2d07f45. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USHK99808201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be7b497fb292950041d8aaee1bfa39ad8ce8b77b56f4314ac225904cf2be72a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:19:50Z), 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/USHK99808202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c2f8c7980f28f1688e0df1121e29dd3fc6eaedcd824914113756580f238cf2. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/USHK99808217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec5ece4d9a4fa789eaa5eb50692b464ed68bb516cf8d17ae371665f71bb608f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:09:03Z), 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/USHK99808207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d624c3736d5d2a27403442a50249bde5d85ee095032bbaeaaadbeb1b15b5fe5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USHK99808208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce49405d32489c55e51390f0b02e9941d4850bec044cb392e1187048cbdab4b. 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/USHK99808223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12d3282c93002cf2225763139742707b9c9b8c6cf525a2e50be9c3589c67136. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USHK90112101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75bf8aa3708d0a209b87ab7043d96ab446b3c881689b683e7e9b9a1b3c81aa5. 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/USHK90112112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c25412c1125b70236aec502ef231a2d0d1913e596b1cd859fd8ca0a1ab282c. Chain 2 (Bitcoin): anchored in block 957688 (2026-07-12T09:52:21Z), 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/USHK90112113.
ProjektFest'96 (live at the vic theater, chicago, il, 6/25/96)