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 0x93eb7ff1e7901429695d6c9e2c8c884aebd0a57fca4858ab1ac5eb5870a339e6. 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/dcf7fa4c-0af0-4614-a621-07db6673fd0f.json and https://artists.proofprofile.net/proofs/artist/dcf7fa4c-0af0-4614-a621-07db6673fd0f.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 0x4b731b48dc43750e4e42df2849ceb02d3b709a14242fe1c4489335e38638d744. 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/FRZ080200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ee23966c25b2199f8e0b82c593b7753bc7528094bc14e102d7fec9a63fa37b. 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/FRZ080200376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6377bd14047d2bc82e18ab8d45ab6122c1cfc9f191d79bcf219e7f7688cca3ce. 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/FRZ080200379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea731de347d8a603776610a7658b0addfe17fe2cb60e68b0db1c92dd977247f. 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/FRZ080200381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490872764f09095dae41faf6ab0c6f15a7bfbc64b6ed93ed0e8cb3c762d15e1f. 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/FRZ080200378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319ef242d91237b7e7beb1726f5b2bde3c485ce2cd2591b75f838ed1530cd54a. 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/FRZ080200377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a99b7e262f2b3ef2e904c667013f68990bd652744b2980efd3503596942553. 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/FRZ080200382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf46da891616b5296bb9ed8bf3d2d11f02ad0c860986d2e6bfe5eb6983ff003. 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/FRZ080200367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c62764b3cecd68c0a467c59524ba988df0bd992d2aae83a91b38e4dd8d658c. 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/FRZ080200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c06032c652e221842735cecd8c93933e46a50accaf314a163b9fcd4ea4582c6. 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/FRZ080200383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec96ac8ca0d539726f6e66585dc212fae06e247b608036e59830c0cc41bf6bf0. 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/FRZ080200384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1763222e6840af9c6a1f94906840ee9be07b6c186f0f65a2b471f100c4fd0246. 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/FRZ080200386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05ba0241a3a7650b8df65a1b447cd97220efaacd32dc1fbfc64dcab38427b77. 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/FRZ080200385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531de79f10a49994219f07fc1d86f0797326e5e412405aaa46ecf80fae0987b0. 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/FRZ080200387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10a3bf5334cea35d73ce121ae385d1e73fd4d7e61ba0c1c25dbf8b0f0d71a3a. 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/FRZ080200388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e35e7c81ca75e98787528d6de68127c63d9ed455b9cdaf70d802116ff8ced29. 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/FRZ080200389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dfdd4261b6b2b0b681d47678895446c94b67e90bf524fe79e58da16274efae. 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/FRZ080200392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb246f7fae5c8f3e3ef7c39dd02e4b8ec606e69f5d5a6a63525f5a7f55d6b1a6a. 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/FRZ080200394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b2663daf98f7374d33f73959040c0bef5f3ccbf47bfac058ed83e85d828c94. 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/FRZ080200393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f62eac4b5f19419289750230a35f6a642151603da03d5dbae139688ca5c34f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FRZ050700872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d72cb012ba9a2a89d929212ed1ef3c3c1a0b3567676b0b43e3e1ee91e8001c. 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/FRZ050700873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce26ee9359d5c1e7ac4491c12ed9fd6d8ca29a0b122048fd9b20f0595cc7eec. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/FRZ050700875.
Toutes les zones (feat. Le Rat Luciano & Menzo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9225f5151c0910c4f1a28fafcd5c0320f91cc828d73cacc74a00a10467ba0705. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/FRZ050700877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a809e8e16ed297617d03ec7291ea2beb6f8b7f4b8c33a886633238c8a7aac74. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/FRZ050700878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7edfe1d9d75e02b754b2d61c4c79f0ff2319661b265b4503a6674d10ed51dd. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:31:31Z), 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/FRZ050700879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103349f789d7582ee0c080250bacab85ed56d1627c6c3ceaa3f41713ef6adafb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRZ050700881.
Le sud le fait mieux (feat. Billy Bats & Soprano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f240e4ace8d82b1b777c4dfc04c8563507526af04036134c1ed28e8eaa3438. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/FRZ050700883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39efd35726ed3ba1c62cbf6654d4c836eaf6194f080cadcf35d80f3b2b24ae2. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:40:21Z), 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/FRZ050700887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb086d08cf98b3af4d19d34337563af4d98743f297a78331bfe567337c59b430c. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:07:09Z), 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/FRZ050700874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498b1b65726b7c2df0f2371b48f51477f63ea08348e0b33aa786d7d45f793338. 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/FR0U11700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b1ecb4c4b57aef2b0e5f839c305f22646e7022b12cbc075d1766abd35861c7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR0U11700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d29ab12b6542061d35cdd549197a36001ada3721d04170e5467901e4cae7cb. 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/FR0U11700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e65a30cb8f43cfd296c9bbc9c92d7d8f0480a056cfa1137506def7f53324fab. 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/FR8Y72300156.