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 0xf094fa35f2cbf170a61b179fa926b236bb0ce52d1c62052a0171c5a164e5bbe8. 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/4e9ebc55-5321-41d2-b053-0a2336b23a43.json and https://artists.proofprofile.net/proofs/artist/4e9ebc55-5321-41d2-b053-0a2336b23a43.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 0xad6633293f75b9d832ad85f9119de96f3b40880dda0ef99567f21e68c85d2ef7. 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/DELG71401087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63343f97b7a4e8a7a8b4d40a654261eb6b1cd2359a630aa26c1d2edbb1b13ed0. 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/DELG71401088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db80be831feed5c3aac3f7bc2ede22eca999d3a3fd5a12793639b9ee3cef3e3. 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/DELG71401089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5968f1ad9b26d76a22c50817cfe6648f72b37b22ca0e11b864f02a7a1a390dd. 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/DELG71401090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb0da02e42bd31ad8326077307d0e12b6b5aea1525f2eab1553635ef70a0986. 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/DELG71401091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cdeae179f308f0ddb5793832ac50ab37d1c7727051a7665537c09f30955d8f. 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/DELG71401092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fa40f28e16db569175631604578066321799fab82f4722f3d2c2fb2bf4ac71. 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/DELG71401093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaab789778e4432f656139fdd9f9e0fd766b16d21db7d7602c7929cbf56118dd. 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/DELG71401094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf76380612c83e62776166b6b8bd6c5c7c4f6212e4258c1321092eaad3a9bf0. 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/DELG71401095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be5e4a1ea99d5b1843ab88afa4b9722401a5fd5b10e4c2c6ee1bfe6f368b074. 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/NOSTS2319010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf545029f41b6e6e1113729f28c5b5bbc975c8715906d3655cd5441228e56958f. 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/NOSTS2319020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1d31cb2551df2b712c07d1142383d20edd368029f5e97dc73c79f040eeeed7. 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/NOSTS2319030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf095d1d23fb580017594a86707d94a51026c206ea9ed8df9eba9e1558cb4ce80. 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/NOSTS2319040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be5e4a1ea99d5b1843ab88afa4b9722401a5fd5b10e4c2c6ee1bfe6f368b074. 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/NOSTS2319010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a35e2b0ae3d07a6aafd2cd9adcfd9b308307cef439a008efe790e2f0731504. 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/BEN582100217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b617ca53d7f800735072a774c538810d16bafb1ecbcdb361847cce3b03d197. 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/BEN582101085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2938e17de69869420cf5a7b296fc623c8b38b5f74bbdd4a00458236a9f46c33. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/BEN582101087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe98e75c862226e7c04c78ad8a3978b428b9d45b55823fd4b4e2e8b4a58f8bf. 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/DELG71401084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1777f1489398157aaf7cc004b10ea4aadd913d47e0c64bce88c4fd5b98d64a. 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/DELG71401085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ff2c7eec77c175027d24ea656e841b26d1f31d70c6712e065a38fde1e724a7. 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/DELG71401086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1554390552400c77d83254b49343366180f619d56a74e0cd427727466a047593. 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/DELG71400961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e39aefe9fa2e9fe3dd1e199b449843d9284aafb8f7c7b2ef71c912edccc4e9e. 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/DELG71400962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ded5b4aba22120a4fe3283bc46f99439a7a9d8e25041d995f09cb093f4b271f. 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/DELG71400963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece37792b6eaf1526ccb147c5ac1ab46cd0a48ca2d7a6a1bcadcb6a20320426e. 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/DELG71400964.
Global Underground #42: Patrice Bäumel - Berlin (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588e35f8a533a654b28d46923cfe5388bdd4c1ca75810bd157e1adb26abb481b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBHFW1800241.