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 0xfb64bb7b840858b0cd7194216386ec4542cfb34ff80fba1c4122415e04eae5dd. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fedbf739-5bbb-4760-af69-f16b9faeea05.json and https://artists.proofprofile.net/proofs/artist/fedbf739-5bbb-4760-af69-f16b9faeea05.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
One Day the Horses Will Have Their Revenge
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 0xb8d4dbdda8639780db80fb6ab397d4851da91596e60dff24120d92538a46591a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZARB1813244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8cf62b61dd1e8c29fa3810ab243d1272622d299ca3986f5082e309d1e532d4. 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/CAI370913052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43d082ebd75350f3f5573cae1c617203155c14dab9d0cfd2ec64e981c1cb693. Chain 2 (Bitcoin): anchored in block 957674 (2026-07-12T07:50:41Z), 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/CAI370913053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0930f6e55ee47716357bd0c1f6538fe80fb960693e4e229042524004117de5e6. 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/CAI370913054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e3e4b60cf634be37c6322cbe97359444fd9da9698b1fadb4d0a19adb741887. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/CAI370913055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a352cc987c4ad99245b8733d7c5b39df12b473e92e2262e112bd6ac51de9b2. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/CAI370913056.
1990 Was A Long Year And We Are All Out Of Hot Water
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6858087f4d685c508d8cab1b1cad00232a7353e506ee75253c321fc8f7d5ebe0. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/CAI370913060.
The Decline of Stupid Fucking Western Civilization
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a270da683443174932b5641fccdb1dcbeb0aab8305d5faee9ee1cf0363f6cbf. 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/CAI371677482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c1e648ab0f7fdcbae80a7a353b61d1011ab5dd1bac43b9ab2de1c9b29d17e7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CAI371677483.
While You Were Somewhere In The Sky, I Went About Things Lonely
IS THERE A BETTER NAME FOR THE THINGS THAT ACHE AND DOES IT MATTER WHEN THE EARTH MOVES ANYWAY
Here You Go, You Do It: A Crywank Covers Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2ea6a8554d145e9135614c97e072ad12434c70124010d0f194b73acffe1ec6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USCGJ2202433.