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 0x41873a6dbc298649e7ff00f36ccc32131edca9bb3abdd4a0b2160e4c63274ad9. 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/74d370bd-dfcb-4489-a0a7-f12d60212ec6.json and https://artists.proofprofile.net/proofs/artist/74d370bd-dfcb-4489-a0a7-f12d60212ec6.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 0xc8a8f711e26c5b1b84d1b314e936adfa7bde0a00a924583c7ce05665854aca79. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QM4DW1768134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ef38f1bd5ab8ef067b9da6620b7429c610b7461a48e883820c499659452155. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QM4DW1768136.
nothing really matters that much to me anymore.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b57e1557a30a5954fa6a0189b8fee949db6c8935bb1a8b4640665df2f4c9c5. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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/QM42K1986486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b754e8002d493d21e0e8fc43304957a0eea549a0d9344ac4bc8c5e38fcd567. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/QM42K1908740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c29d532d93608dad9f476c23b613abd8fe73f144f5fa12690045c00c6f57054. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/GBSMU7452663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8feb9839fb52cdcf0a5873cbf8b44011736d5a318864c6b28f8a0fd7575c6c9a. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/GBSMU7453042.
everything is boring me, i'm off to go get it
it's sunny outside, no reason for you to feel the way you do.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3c5c4602d98db0894198fbf8bb83900d1afdb828f2e5a7bc7ac74df9182af5. 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/QZFYW2198888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898d6c9665254f6c310bae54e3e6bcba449a14a9d77d9534b2ad2280eaf7a257. 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/QZFZ52194470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3de7fcce740b0ce7a2ceb0539d4f1b529720f369c762c9e7aa9f36a90b5cf30. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZFZ52194471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2d46464938dd6c31de97160996fae95b877b587456ebfd48a7adfafeb418a3. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QZ9JZ1738022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a658b069b794caa05f272fae01a1e0cbb2edc2462b9a7bcf1e3c8115ee4b77. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFZ52194472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8951dffcaf872280ec9165b3210076989e53ea2d62ed376f74ebdff0296e24. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZFZ52194473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f3205bd6de3b7d838cef2f78377b0ee461af39d445313bffb6257f2b74efba. 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/QZFZ52194474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a84c8b7c8b4c86b7f0afa7a9c64615ffa0a2a9e1399d9d9e55cd1f5fc2e352. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/QZFZ52194475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111c8c8919776e16828d3335b5814384fd64a2917c5d5e7cc37270785ea0015e. 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/QZFZ52194476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1772b0197cc6b1200a393318a3c0a1c1fabb40322d3f933ff9823cf93779b200. 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/QZFZ52194477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae43d07fe81bc3231e20b8bc454ea21047d54ac20ca8c0d7b0661ee087df6ac. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZFZ52194478.