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 0x9b9b680eee242e952b9a059891b546ce2049c9c2cbc06ab1b94eeb1ded25f95a. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03a37e49-b6fd-427e-8ae2-1239774d924d.json and https://artists.proofprofile.net/proofs/artist/03a37e49-b6fd-427e-8ae2-1239774d924d.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 0xf08bfe83598b95672b4433f2cd195dbe7344e088f1350d54ce6cf4a5a12af929. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US83Z2136283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0399260e98f90e2ab96a4bdac6e8c53f44bfac3f6117bd0b17d45ddcb25b81f9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US83Z2320374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3302b83638da9d83108600de8c47046fbd34c0b1b68373cf9b505ca712918d5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2321617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb651ea392cdf7ff8e160163ab851b6084012e41c19a7186e7e68df993432aee7. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/US83Z2321615.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed003255b4b307f5748dc70f0972931fa495e8615ee09a3903353c678260c860. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/US83Z2321616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b5c4091d57dce05974f79ba2f28f2098403320e929764d89f7d422cce39ffc. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US83Z2321620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51bd7a35d3c97f50f466707370546c5467d90f470ff462f868c786ac8c37859. 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/US83Z2322037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fb853435d5a6cd4b58f03c63cf61cbfa9ddb1a89a2ca79223e2183107716d7. 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/GXBNP2500498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217c7f36c1d91fd1bd20f103cbcad8587bfd2feeb2e587ff09e5fd17f3087a12. 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/DEH742522283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ada7c8ddc8bff155fc8138cbe1589f6e6209e5dfa129ca73400ca6c96f0d28. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/DEH742522359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec992de5d9fab435d225f2a7551da4aa0aea1dda405e015a3cffe8ec93a564f. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/DEH742522655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06956c61782700338a832945633e4668f4100a3a204f618df2642cef1b00f72. 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/US83Z2531503.
The Night / Long Way Down (Schnell Schnell Remix)
The Night / Long Way Down (Thommie G Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9803a7de236c163c1c07533413f41fc1bfa39ff2ea7e229894967d6fa6348210. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US83Z2554016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbad388844e644221cc27de1ea331db2d9aa6acef7ff5210e830b861c53b979. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2151066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0593e274a69bf37a032d34b2b5be076bad888fdd38573b9d023430ca272183. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/US83Z2109770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8993aae9638ce7116133124d14b1212fb0e3b07462285fb1d3e1e939c60c6dd. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/US83Z2304216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fbe8bda0b390c1b861516eb9e5b52875d817719f1a27b0c48d5f3eb12325cc. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/US83Z2301164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab89eb7c0ef6e3be971f663a90915a3d4c332d26bbdd1c2e2fb38257daf0e001. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/US83Z2049841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d876147b33bd6367e7253f838c61c3064241beae378443e47e5c8b6dbf1a103. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US83Z2338727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fe204b24914d25a1a2d246fb519732f3dd19c2f754b9241cbed29afe9f9670. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/US83Z2217455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ca126fafb2867293e1aa0ed4d214b49fad7d3209be187311951a566c1aa9fc. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/US83Z2109769.