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 0xa2e409c44d139b62e108b06863c503668eebb83e8b3ae97796e5fcae7a692742. 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/fcf3580c-2e7c-49e3-a0fc-2573e54b8e1b.json and https://artists.proofprofile.net/proofs/artist/fcf3580c-2e7c-49e3-a0fc-2573e54b8e1b.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 0x9fd8ee0d6ec0653107b15bc21e361c8a4e42ff9eae755c0d5bb2817739a62ff2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USX9P2003738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d2abcd169d41c03d75c064c095dfbba843ed1025a02c5151b45af21901bbc8. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USX9P2003739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3f66b5c5843c952a527d618d085cf51cd0a0fd609bc4080d348f875516c290. 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/USX9P2003740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89402048a3bd878496071f12a1b4f445c59cf681c83bdc7cb66e5dbf0bc4a59. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/USX9P2003741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4cb0616c5ba0a757e4d460c35ec7f2355d3b643575780152417ad3507470d33. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USHM92174063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f4b7d7a9dba9b1352bae57755db695f23cc010b2933a14f1710771540409b4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USHM92174064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4784ee1d2deffc146fc17943b5d2137bfbf89b4767189e89e86179eecf2411e0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USHM92174065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8756076fe0b2645b5cd9b757d84b025da2174427a5d62f38028869af3b17a07. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USHM92174066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a53a61213881e8baca8ff6af49a1e880a8ff54f7226828d0b2bbc11b5a93dc4. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/USHM92174067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7812b528fbabbf059743784d94e4004f4f51db6f49c0ae5a71cbcf3b66cd27a. 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/USHM92174068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf732e9c7fdc3af08bf3789b7d00770542e0bb17b15eaf949d0aefa374854019e. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USHM92174070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be4c6022b5dfea6284bdd12b2062c146c249454726022f0e8df3813dbd93395. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM92174072.
Homicidal Amusement Through Supreme Exsanguination
Isolated Resort of Deleterious Tendencies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3366de986ceb0a2c9c27920e3a172c1b122524894faf439238055f53b4485b5b. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USHM22288838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66dbcd4b7955fb3a0b28119ecb4b472b7377c741410048c67c4e4ccde42ee45. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USDY42366832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e16009dc954c0bcb6c052846bce0a4de220e0ae4f0c3083b8f24f2ca383f30. 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/USL4Q2442267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ffe54f975f2f7fd9119f9fc1388834d9c9b176c4ce048d8bf2b83a3b9da2d5. 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/USL4Q2442268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6a35e4bea4d5f2b349c524161082e1256b46cd3a3ae68bedb2f03796079a70. 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/USL4Q2442269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0470b3459216f03b1c0d92459b72cbd49b52db9bd227ef0bc6ac8dac0fd66393. 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/USL4Q2442270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b94107c727cffdf550f5abd09185a498e72c0987925497491576306e79843e5. 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/USL4Q2442271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80474ab39bb705b781ca64f8eba9bdb4e01e6aadf5375c390adeffb8d9eb072. 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/USL4Q2442272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0278bee0b6e1427af4845ed5885f6005530eb7b6a58e1199a5dd4b005ef137. 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/USL4Q2442273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96dd597d9773d911bc244d29ac8c1c24eea611e8c70059b68f1a7e9382537239. 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/USL4Q2442274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437dd3c28c60cee2e2726b1b0bf206cef3857c6f16c751b30d8bc405da1e9059. 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/USL4Q2442275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7715adc4a6e9cd5be27822572aed5600c47abbf19d9606238e4f20082c41314. 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/USL4Q2442276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd663745cee718c8d792f75e9882dd0392129d40cfc55099d8f4633926763d3a1. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USL4Q2442277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d32baade8c0c572d53bd4585e4927e79eab8b4ff44f3079459dc7e6afff4b2. 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/USL4Q2442278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b9d2d584f956ee830d23c485d9ee838c976e3dc69d546ae044fa3fa4c59fc0. 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/QZWFH2388776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33965fee4388e993e55bf682b7dc22c5b711a18eef547eb0f18e16f5435e763a. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QZMEP2307115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0bc48f8e4399c9b21a70a6a43a331ae29746b447dc46306b331f66f1def36f. 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/QZHN92579892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0bc48f8e4399c9b21a70a6a43a331ae29746b447dc46306b331f66f1def36f. 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/QZHN92579892.