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 0xa73f2c850c6f6d95aba7f849de6a885705a392be3978fc23607f800072cc9cef. 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/417ae70d-f038-409d-8e8e-7c31e7d1e7d2.json and https://artists.proofprofile.net/proofs/artist/417ae70d-f038-409d-8e8e-7c31e7d1e7d2.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 0xb1e4b51639dfaa81e8541eb4e443b9718c4e42a5bf360b1554b5ff62d2930585. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/TCACD1573688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdced41541f6641bc47eba2fdeeea5a81bc58ebf44e60ea9374e4db993a44a3. 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/TCACK1558735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf489e02603d83b572cac5f118d1756a75ea59defe47bf9626dca6fe8b889d280. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/TCACM1631534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ef0a33a07c591ad1cb87c975f222973ee15aecd84a3e29c7331784326fe885. 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/TCACR1624387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf51d1938df93f64b296c34da64806e2724d7294c9aca00c64ef415115567319. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TCADM1838311.
She Don't Like The Lights (prod. Direct)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d97f3014fa7d8ecd1837163bd54c57d15ba414c6c89a4c866d3fc5717c5ca32. 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/CA6D21800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a401e5b1ddb87d3637f757f0c4939a2efec0d62d6db852b59ac1fd86aef2d5e. 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/TCADP1892785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c0dc5ed222650a9e291f9ed26d22c2f8e247e62a7aea5b9c54d5f902dcb9d7. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/QZK6N2148353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2787054028f16b57617d616e73a1427831211a1100d43c23d461076fc95f10. 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/QZS632394889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fc8a809fdc67a41f2d32d532eabb0473ae91bc60772933262f7ecef28865e2. 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/CA6D21600326.
As the World Falls Down - slowed + reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb157437230b0b99f873db69afa1be613119d5e9615683b80cb1eaca9f1f4a5. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZMHN2214074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4320a7b8950f4318312cbdd691a5d847c26c090e631f5822080c70aab51b9bdf. 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/QM7282198916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea9878618b1e9825bc0334ec9020de957ae8999179d1e3eef9927698d133346. 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/CA6D22000135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7d5c0da299a9947318ed152b2127c873f4a11a3a6dc7a5ab7f6de0d83f8437. 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/CA6D21600315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93db88d86fb43047095bf4ea432eb331f688538a987cf666cb0f9c5596facaa. 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/CA6D21600316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17d35722b982c315a0c10ecb32bb7f97cd235b0b7de0c91f873ce6e61e65b9c. 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/CA6D21600317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641286315e1f61da99735dedcab77936d2492bbf77c89cbf805fd0929e5793b8. 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/CA6D21600318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac2abbd2614b953d70fe6e5082a98a3a7d575a1996f9498d3652514529c40d0. 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/CA6D21600319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfaaecf18d38e9d08cff628f79ed218316554616f7d3adf7049e162fe20484c. 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/CA6D21600321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b822b5dd993b72b189e5a1cb64d90bcca4804223e009f78fe093ae03b390b7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CA6D21600191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbfeb5fae1080d93b288bd482e6e5e6d770973513c370bb90cfa87540ea9446. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QM2PV1758896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea9878618b1e9825bc0334ec9020de957ae8999179d1e3eef9927698d133346. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CA6D22000135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e34598d9222f49ec154ef1791cd144e1a15ffb28903d9d3e3546faaa9b6112. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZMHN2245173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa9fe7fb54c26988a2779d528952213762957ce079e1e0e20f133999e8371a3. 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/CA6D21600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa9fe7fb54c26988a2779d528952213762957ce079e1e0e20f133999e8371a3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CA6D21600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b822b5dd993b72b189e5a1cb64d90bcca4804223e009f78fe093ae03b390b7. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/CA6D21600191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17b448102074760fb5277ca3d0045bd5bd5c17abe09914d121174e5df9fa2bb. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZS672299469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fba7343f56356c980295f476e6aa84a4f208f89cb355f25ac51554e5af6651. 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/TCACO1669719.