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 0x204477e830fbcbc4d85b4813ad6f576c5a11fcf7cd5237bbe3a98c091efdae38. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4f43667-c25e-4a68-ab60-bccca4e50abf.json and https://artists.proofprofile.net/proofs/artist/a4f43667-c25e-4a68-ab60-bccca4e50abf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Casey Can Get It Because I Like a Girl with Junk in Her Trunk
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 0x76ae94ad77f6dfd3d139c89cdb7696abcaeb6a809d95f971afaa55f3247804b6. 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/GBLFP2314326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373ee78feda14b92a953980a3e526aa24cd65562a2403f3fd2556728d37fd4a9. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBLFP2314327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cff55268d1ec48e0fddaa526873e4b516b12c56fca6bc633504f87e3531e98. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBLFP2314328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40058a58f8fa6045287c662151002cdaffef0290c0f6cf78b92ba29c3371a422. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/GBLFP2314329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1217dff242fcb15ad95af9a9303dd444e7391d2600a71ea9204ed7da35d3de31. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/GBLFP2314330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7976d662e4bfe17b66f482061d090e99f81a818e4901f04ff92922f4cdc0bcba. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBLFP2314331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e7bc79b373fd9f5e3aa55e1b1496540ea273f4cc30c9369f141bc1c8f5c8b2. 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/GBLFP2314332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b6421b1586d4863351eccc74f8e924e2202b1d3727f3bdf85f344712e4c3ef. 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/GBLFP2314333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc2bc6391706f384fa2ab59e1fdef9bd2c0edb77863b045749ca42674e7b754. 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/GBLFP2314334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd7241b445e5915e0158bec6d3123105620fe4a24181cf4a04b72d6f0855ae0. 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/GBLFP2314335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fcab150ba74c2c861170c57e749c16cd59a456bbdf1cb480bfaed460643fed. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBLFP2314336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca99370d2a9f700821cae726a040d8ecf7af7530a5955a65220d685070435b3. 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/GBLFP2314337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb8be889236e68c154d168215111b69104e48919203de3e214c9d29eccff435. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBLFP2314338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0104a026f3ea5bcbc9359a86574ae61513efdc243a7e041678d939dd8e28f5. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBLFP2314339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d7ead1eca0d086fd7c0ded667213b2cfc50040a86a181a76b0da0499cfe2af. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBLFP2314340.
Drop It Asshole! (Preschool Tea Party Massacre and Roger Murtaugh Presents)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd93ef4373a6eb6aa7951ca75535b8711e714ccbe525a6edb50bbbe71ea9f4d. 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/USHM81186080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0816287abbe47cab3890bf5ffb7a4ac100e897aae28770709dd4d36875fdf712. 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/USHM81186081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70ca6874e1f81facfb0361ef4f18e6d5eed9830fa6b9ab08f11518361bfec67. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USHM81186082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19125d037eb7ff490be6f1bd96ae88b1263704c28fbc1a73982a001ccdb8454d. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USHM81186083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83eca4036ce8d1fe9b18b1956312101fcd640b51756580721eb07f934b58cd9. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USHM81186084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576f331af1f1322f0fd1517ea94b98a767dfd1267cfd9fad7fc2af080c05ddd6. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USHM81186085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376bd3e97d858afc6a60dafc5c1d869ebfa3d6361953c266f9f13c9986bfcbe1. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USHM81186086.
You're Rippin' My Dick Off and Shovin It Up My Asshole!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83001828ebbe196f21a729c31509c24b11061b8852745240f80515a023f1c68d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USHM81186087.
Don't Worry Asshole, You'll Get Another Chance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81425cfc4cd4b1058632c020420bdbe354a3e89fba3d00d095511b618972d25a. 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/USHM81186088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00780cc485024f5334581bcbd357a96ce78dca127f3c754eb8df7adff436f7a4. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USHM81186089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb547de18b4f7240ab3154ea4d52e775dfd272e9ca1200f67a1cc53993f0a344. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USHM81186090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0167940e8028d65d0ca2cc6751621cf9a0829ec5e8665469c3b74b35906cdb. 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/USHM81186091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff1b01ddf0fa2fa0e423519df72cec9b0d06841bdd6eb988476a80adbf52b16. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/USHM81186092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1546a5a969970bfbb2f5ee7c5027c0a159c39e067e4e4ac68a615526ca4320. 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/USHM81186093.