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 0x0470245558fbb16936ae69c388b43b7e456ad846098a25650c1c0b78f2c43b31. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e25431f5-985c-48d9-8d55-6e231bc9e501.json and https://artists.proofprofile.net/proofs/artist/e25431f5-985c-48d9-8d55-6e231bc9e501.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 0xc2a635159ff3921e2aa433683f74a601c3fabd88530d5825dcf8e466a387a6de. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBLV61715660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdba85755f1b0c8cc78eea49fb20b55fe318784ae1be5944e8936bcf14aa6e0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBLV61715662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066266b0ad2be0e597fc09c6742b33620c0a091e6e091673ce3efee3eff6cd74. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLV61715663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d5d0559c3446317cace45de001b38bbc73eb8ba920bbabaea313b9616a6be5. 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/GBLV61715666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1637a0ab5f764100f8173558130938b2ffcafef70b3193185f000dc3a103cbf1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBLV61715667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0638e63a76382a3b3e074a5957abd17f8ac4cc79e6fa45284ff743722494e945. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBLV61715668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b214114a6f13da3f43c043cb38d6a4f454c5658d6a771a17f0221671a3e0083. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU1853111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27a630cd810e56ada3444fe985c002b9e1822888f1078196cfb1951cec289a3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU1853122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6839a97fc3c1fcfb99976f000529543d393a7f98b114420ac8dd4af9bf23250d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU1853130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c641fa89b9851243abc1d6732a337ac97bdc1774ca10c767ba557c7c3de6786. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1853134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf972308089b37a940c8f6bc9401a2dd312e3e365a2aa7fac4389b3a3bcfcdc07. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU1853138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d06a21689108557907ad8c8dcae12abe1e515d8ec40e398bd2690d7ce63a9b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBLV62036706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9dfe9bcd4aba43bd29ad9845107f9f51c5504b1750a920f6c7a2a23e82bb88. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBLV62036707.
UK Jungle Records Presents: OmniRhythm & Vincent Van Sloth - Save A Sound Boy
Normal Never Was - Revelations (The Remix Compilation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe61936eccffdab776150e53bd0448ed4ec5e1087d2b6195bccf214c609472f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBBTF2100275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e81d33c0db67af7f62d08a01e3fb51fd0584296bd027e5f1544fa1ae4a2c12. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBBTF2100276.
Do They Owe Us A Living - Kooky's 'Punks Love Beats' Remix For Yoh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66dc00695ffe19474451e827b7fab5c73d790264831a0654d736289f80b54f9f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBBTF2100277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22380eecad3fb6abf2ff0a862f46da950e4066d750e07e84c622ec5b9172dab9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBBTF2100278.
They've Got a Bomb - No Arrival - What 4 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360d79f647741db8c58a7a075d2ecc5cc852398162098410199dd02d54409b12. 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/GBBTF2100279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9645b8b8bb955f8646f5bc50265dfa16193a599d8459e86bdc38a92dae116de. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBBTF2100280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194ffbd1de6d4dd1b407971a234abdc0e3109e10acaee20bc94037b8367b7c27. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBBTF2100291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff03913c06554083c5fe9107d2eca78de136f468398efd2578d7517252eafc95. 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/GBBTF2100300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d33818b0b442f22569f6fe61aa8e8d48e8cac04106e272d9d59cbee41bc96ba. 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/GBBTF2100306.
Well, Do They? - Vincent Van Sloth Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f48a8d0ffecf9f95340c1848698e852b25ded54c70e32b2f88e1cc8de69a3ad. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBBTF2100313.
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