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 0x068dc1efacfad920fa7fe6e99a5330ce3f9bc9a9c8baea7e4efb4bc168a28f50. 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/85bd5128-fbd0-4ff4-853c-07df0d09510d.json and https://artists.proofprofile.net/proofs/artist/85bd5128-fbd0-4ff4-853c-07df0d09510d.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 0x8fbc8928242ab7fefab594792d81a8d9d01d93b6df19361ac0ac58b6e0f579eb. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/GBLPF6733040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735e12332e41a30e8d4c7cc5131b7c8942fec0914350171d7fd68855a75c9dd8. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/TCAFE2026781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c9742a0b72b2744284ee755885be2feebffe15a72256b2c2d05093767a2fd7. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/TCAFE2026786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbc674a8abdd563508a84ca215ed61bd81df7cc19c092d8ce4fdaac78fca197. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/TCAFE2026787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef3dc6bf8264978a42bd4e4cbb1f50e572c80c3ed62a7c15a0d0827cef696be. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCAFE2026788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de1c77f924c052db67fe724ddd614c708c17f29cf4aacbc8bef858d380a4c4b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAFE2026794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b9181cfbb8a19f15394faa8057db455e5c87fd653657c6b212131b80a8b63d. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/TCAFE2026795.
Things Asians Do When They Are Done with Homework
Being Kinky Is When You Tickle Your Girlfriend with a Feather, Perverted Is When You Use the Whole Bird
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95232dfafa010493007dd935d5423238eaade59efff48745ccffe6009bd4f903. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/TCAGQ2231344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9386e2a73877699a45ea8a5b52b3f423dc1d4889e072b1daa7330108922eeb3c. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/TCAGQ2231345.
Otphj over-the-Pants-Hand-Job Is a Distant Cousin of the Dry Hump
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530cb895c14009a2c6d5f97856778908e03454e0dbf530f0ea12e31610cb9fea. 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/TCAGQ2231346.
Calling Someone Average Is a Mean Thing to Say
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86635b8b0c9b409e0a78b5ccd15b2ebac0efea7bfeedd7967752da8fa1fd2b7f. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/TCAGQ2231347.
We Will Stop Somewhere Between ’68 and ’70 on My Time Machine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636bc773f060aa0ba7fb0f51bdb70efde67f22ebb1b4cf3bfa5ff11da114dd17. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/TCAGQ2231348.
Stocking up with Sausage and Cheese for the Crisis Is the Wurst Kase Scenario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24314b581dc51e510dfaff720253be949ee4f80693675ed8105881876a93d83c. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/TCAGQ2231349.
Chuck Norris Got the Virus to Quarantine for 14 Days
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a635e59fdd25904a7d58589907d3fd609cb95487968da682f49474db96287ba. 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/TCAGQ2231350.
The Squirrel Swim on Its Back to Keep Its Nuts Dry
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2171276c92ca798193a82ff8aafc0caac0ee9279989c201d52fbe491ddb7d3b9. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/TCAGQ2231354.
Santa Claus Have Such a Big Sack Because He Only Comes Once a Year
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e606bb55da2dc74cab644fbc54a705d45108a36235f5a5906c34e5c30e4a43. 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/TCAGQ2231356.
She Yelled. "I'm so Wet, Give It to Me Now!" but I Was Keeping the Umbrella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afb304ecf39e4e817cffc197d47e9b90a7e5206b0e9d222fe601e9771f533a6. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/TCAGQ2231361.
The Difference Between an Oral and a Rectal Thermometer Is the Taste
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4c2c11809f15f48c7e6b16784758c49df7e68bdbe3a33f8b1fb00a432b640e. 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/TCAGQ2231365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3779aa662a84f769301351dd4027c49bcd339a02c6744506ec8ba7bb601aabea. 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/TCAGQ2231366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc074306f15e92113b92df1eb66ba28d98daced3e046dcad87bf68104e77fd577. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/QZTPX2446406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46ead30af0e192f096a8bc82cb5fc98eb9fc1e70b9bbb87b3ef04aa35b5bb73. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZTPX2446411.
Dissolved in Radioactive Sludge (Companions Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a67d65207280a97958917c0b0086290ce604427e0298b5f2d499f5c2b1b364d. 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/QZES72308549.
Slampilation Mixtape (Compilation Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e46ce39d3add050fa0773f6ef6a6daac362295d448d8f3d5e7aca2a836b6125. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZW9K2259638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786eceffc308bb30b88595ae0abc9138f7f959b1b72cb8e5a08bcd08c7513175. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTPX2107554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c053bab898662b75e0c3a9bc9948ec40ce89f4ef0ec8d9fd2a1044cb6fa3a5c. 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/QZHZ42173205.