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 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 0x141255e4b3005f62c96c4bb82a3c64a816d6a24c4fe3b4aa098699b2b0543fe7. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7013d1d-7be6-4cff-96ce-97f9a3f52d48.json and https://artists.proofprofile.net/proofs/artist/a7013d1d-7be6-4cff-96ce-97f9a3f52d48.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 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 0x43f532d07f091fd67ddf270a9da5c59a0d5a699fa71fd68ac4a50540b5dbc87d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEUHA0106020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be14f3c7525b808144eed2ab710d1387772ed233ed4a85016e0ffe3896a526d. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/SEUHA0106070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d79421b18ba51a65113007f82ad7e78930bf53a4018cb0c4fc7588b3a4464a5. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T18:22:32Z), 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/SEUHA0300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c95870b1fefa425c5689f5177d92a6642ebeca49e724249c8d38ada1e482d6. 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/SEUHA0400404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839a2bfd3433bcbe56dc2e7b95ab19f8fd94d4b35e8390fbd2ddc391431c29db. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEUHA0704010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcf016e367e4deeb74edd8300af1bac700d48696e6c40b7bfd824c2bddee1c7. 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/SEUHA0704040.
From Eagle To Sparrow (Bonus Track Version)
Poor Young Man's Heart - String Version Göteborg
One More Drink - String Version Göteborg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe360a26a5a17a8718cdf8bcccb632e18939c2f3d38a6ad9647faf649a97df6cc. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T16:34:16Z), 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/SEUHA1500708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f546fb6d13dcd7c2cc53e2dc0b053c96a618cb7f746207045e237cadbc5bf2. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/SEUHA1501001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040f1e906d47e44883dfada3011689c056625a9422f5b30954757460b594b6ca. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SEUHA1501004.