thumbnail|right|180px|Electric chair at the Florida State Prison The electric chair is a specialized device used for capital punishment through electrocution. The condemned prisoner is strapped to a
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 0xb3385a321a5ac56669fa2f095b2b0ba44cf643c560195a4bb8bedfc30568d482. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/817a951f-d5ad-41be-828f-34a2cdcf8dd0.json and https://artists.proofprofile.net/proofs/artist/817a951f-d5ad-41be-828f-34a2cdcf8dd0.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 0xb48266ae4cf697321800cec12933456d575da1e5de510ba9abcd7381b3311038. 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/USHM22317797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5423b6f1feb56eb3a7721901204ed0461854dd163f4efbb2ae253cace3916f36. 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/USHM22317799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e185917a9503fc45a109ea2f99e81637dd37375d5ba4cdfcdb37ac32d6af16f. 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/USHM22317800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e614e5a26233ca8b5463a573af1d216bbf8b05ae10b02fa241130801f61da5. 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/QZ2YP2221301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6bfc8201333b6853c1e6341efd37a5a2b5fa3c77906a2570fe8d120fa2c869. 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/QZ2YP2221302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906db6962ff1624150b54d6679715a89d954c2356694028911049898e4b4d6c9. 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/QZ2YP2221303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016c67623a64f73acea4b152d2b88932f7675ae669e1bfc3bc973613060c720e. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZ2YP2221310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0744e4f6592f19e10f74af24e02a4314870fee7d99480f0a10692496419c1dcb. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZ2YP2221311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacaf10670261841fabcafc166d7adcb2fdbec7c639dfe7370079211ce9525a58. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZ2YP2221307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa327ca4f36554d1a185ababaa035748d58b0b3933ee5c3a92bcd95a83ffb75a4. 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/USHM22316902.
Live With It / Certain Doom / Fatal Disease Pt. II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e614e5a26233ca8b5463a573af1d216bbf8b05ae10b02fa241130801f61da5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ2YP2221301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6bfc8201333b6853c1e6341efd37a5a2b5fa3c77906a2570fe8d120fa2c869. 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/QZ2YP2221302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906db6962ff1624150b54d6679715a89d954c2356694028911049898e4b4d6c9. 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/QZ2YP2221303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e4bc8f37d7012c44874538ca837657ec64cd5e47164ae77f511574c6e7b514. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZ2YP2017901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d2ba81ff3c4646d052ad4081597db594ca1ce4459b9a054b2591f82403778c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:36:37Z), 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/QZ2YP2017903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b87eb5f866516783646966159996b30624baf5918ca1f2cad742e5a4755af4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZ2YP2017905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a3ddfb63fd049b77cb9175e2479092542a190b0968cfd3f1316ee13d7bcd66. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:30:41Z), 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/QZ2YP2017906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e4bc8f37d7012c44874538ca837657ec64cd5e47164ae77f511574c6e7b514. 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/QZ2YP2017901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7e7c16b240c3b4640c2c7184d7346c1a646f1ce8cd2473ac2ddf52ef55d42a. 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/QZ2YP1914201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3d8754c46908a7db0cd230dc307be1f994ac18f2100c467c9db1a8fc90bb19. 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/QZ2YP1914202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c2936c630a2a4d2ef59a1d53d4e01070503c58e24bc19f903de2a2ecb0a384. 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/QZ2YP1914203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1ed3d33e3d0fa9d0f886a6016bfbeaded9a71cf8a53c7b5af1b0e60296ccfd. 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/QZ2YP1914204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b250b91a87a1a918b8eaec7249440e7fb05e3ebb1e616e0a805576129e28875. 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/QZ2YP1914205.