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 0x4ba1f819d0c6cd517127621e007f47e33f352747bb95834d6b64d0443ab25ce5. 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/ff1afe88-3de0-4f7d-b829-8389ce7699e9.json and https://artists.proofprofile.net/proofs/artist/ff1afe88-3de0-4f7d-b829-8389ce7699e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
DripCast Presents: Drink Bleach, Not Wine
Every (Thing I Get Is Gold) [feat. Kid Ocean]
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 0xed0d455a9fa2879ad6043b112a18ece7d073511c8cd9a10aabbd939a78953a7b. 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/QZNWY2480182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4431a03149c0424991edcfea44b4d0c1368d541699023b63b8228543459ac28e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZTB72460725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48994ade32996177c76352a4418c22418ac7e52cd96a17b18937e6c038f32c6d. 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/QZNWY2484270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38986fc0d4ced880d2ac2f9a6bced3cb2aa58ea0edbf3f44d71dc2df3d287efe. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZPLR2469278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0d455a9fa2879ad6043b112a18ece7d073511c8cd9a10aabbd939a78953a7b. 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/QZNWY2480182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4458e2f42545f18c79aba3d2c5cadfc42da49e94407d49ca0f772331a33077ca. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTB72460728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc200f836ec391aad47d970fe7cab61911e5439125daafc5a3ab25fc8350eb85a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZTB72425535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8591a568aecf5508a3fee3a0edfb561d7d1a0d0bbc4411193b867301d7a25900. 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/QZFYY2582095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe9faf485db093bc47398270dd443e249270c875e1eb67ea853ca7f3fcb4b0c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYZ2502898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8591a568aecf5508a3fee3a0edfb561d7d1a0d0bbc4411193b867301d7a25900. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYY2582095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8635f90b22d74809555912a76f128381629e89eb6498f16070f7cc729026e920. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QT3EX2482638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057486c9e772ee3f5390aef2e894751ffff4ba021253c7a84f22b52e16a24cbf. 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/QZFYZ2502899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b05866ce9e8fac787abdca5e81f6d7cfdeeefb4c16512d0401089e15308de1. 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/QZFYY2589908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c352ff9627d3b52cfadabba476ddc8ef7b04a02ada97f2438d48c0e8294d55. 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/QZWFU2465810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ec1a16b3b0eafc090e8211e83e3ce2f2fc71bef61a858b77114eb2e77b3639. 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/QZFYY2591130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787b36738470cff7eceb81c94c4cdf6d9c082e0666ca52249118e4cd8ec1df8f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYZ2502900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15295c472f7024ffe7f65b65dd8a29a500c242b6f99963e066280ac3e792e955. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFYZ2502901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0741b380983c4b1593b660d4b2215b1da7054504b725f8f24da320b99afbecaf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZDA62509090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d7ba7257c4b5cea36f2561f2bbb6061616ea390e82fad46bcdaa03f3e5e2d1. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZWFU2481709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf423737d5958a6f189d5229f7e85ca8a2c0a5214c54b708e7f03a192eaa269d0. 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/QT3EX2468581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734f078535e3f60dd9b520910369fd3299fde40cadd8a943071f55d20ed2f623. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZK6N2591479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734f078535e3f60dd9b520910369fd3299fde40cadd8a943071f55d20ed2f623. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QZK6N2591479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7b2df7215058d856f3b28152816b6d1d2d66696124b6cd2b883f0b2beb7550. 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/QZNWW2529324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009e94eb614ee29e994209ce696fc85f5cae888782f1d42bd3641aeb08b6ad21. 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/QZTAY2510010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2161dce633b17f48f79ef6d9352555bc224c6da84e1fc839a11be284bf840f42. 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/SE6XY2525892.