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 0xccb36ac1174833dbb7874466a2ed5e3d5059d623cb01b7d0969bcec1d3cac948. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef247727-67cd-43f3-bc58-0aa9125c7cff.json and https://artists.proofprofile.net/proofs/artist/ef247727-67cd-43f3-bc58-0aa9125c7cff.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 0x4028f22fda4e3e079ce94f81e5d483ee60a79d07660fad6f09a612732441ce97. 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/QZGXC2301003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10e25e9ae7d55c860d38dbf4d409e2eccad23c9e53cdbc79fac4522f3d2113f. 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/QZNWZ2290018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac2f3975e626c51767e9db4204cd566f67cf33460c6cfaeeeac40c2da63e035. 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/QZNWR2340179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ab70bafdeb42bff3b832bf399075615b4d7ddc2cdd6803acab2f6d377e782f. 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/QZHN72335471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca4bba5a69fb32a6e1d8566fdd444d979118f95e7346115cb60c6f50e0c58c3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZTAT2247129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fdf105eb2e22d2c8178ddea8f214a4578590f83bdbf41466230e985b7c8515. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZK6L2206566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecdeca85d4964f0317a5562c67429ca372495875c5bf0df99e23a7d2f6f3075. 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/QZFYX2248554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eac001c08ed85cba4648da23241ffc6670577e2a52d7fdbe66ed32f4daf09ed. 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/CAGOO2411186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa887e5327729007ce218fc43a0b61e869c139a89fc046a9555f1e453dadb2303. 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/QZNWS2494955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d0cc39270ae6a7a25adede5e1d7f02832bee707e963d28a9358ba50bdeb168. 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/QZGXC2400577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e3d11817ebc7f9b346e40518efb9002e3f0b4e32a3ad3ad328754618f08968. 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/SE5752439193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9fb97dffe45bdc1ff58fb5e444e472e48d8dfb3a84076a6787c702ca6c3ee1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHNA2336019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304051ae2b462c8e71db0cfd4993b1a517dde18228a62c00ec71f429090b966f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHN42479116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b97ef1c9eb8f5a513a726ac86afb485e8e2537e4edee1844dc2fc98f11ceb2f. 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/AUMEV2419407.
in the midst (Christian Singleton Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd1f8fc47f92b9ad28b13972d73c67f8e006ed64b13012bfcb60e410f1d7b10. 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/QZFYX2438365.
I Just Want To (Civilized Creature Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73cbb641741ab12d46b3205d7839d67bd7337e1fc441ebe649c9da38037b4fd. 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/QZTB52377774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf82e2140b5d4a62704996d16cfbf3971f7053dbbd8903670b154df40acd5021. 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/SE6TI2360138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc89b5490d0fde856c9b01bbed7abe1cf477cf49befb8f198e12bf5ee78f422e. 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/TCAHL2352698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818fcd41902f9498fae0244d3d38580c128e2a264cb87d4369b5f920a1c87877. 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/QZNWV2349642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db232f649b86f7bb97b64ba9bb1e5d2649e2abc06db173227e673153e5e5ecd. 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/QZTAU2228969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b16af1e0b0c51fde5a769ef4f3d2866f09731206bfe4040c9c60fd88014ee49. 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/QZNWQ2210851.