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 0x74da473f60eb7d506c5908a066cb383c3d9c7b67f4e1ebfed9321ba98a29a029. 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/c0c0867f-1dd9-46b0-b3ac-47d9162de942.json and https://artists.proofprofile.net/proofs/artist/c0c0867f-1dd9-46b0-b3ac-47d9162de942.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 0x8a39c7b7d0fe5dc52843a17f0b5de9922e53a741186650b68e74f894023c84cd. 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/QZES51803230.
I was dreaming as you spoke and not listenin' to you
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42a82c33fd959d7b08dfa601b2ae7adfec2af07e924df6a11ee70c7762381e1. 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/QZHN81978121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9716458ce28464fe327bf5017a34b19a5a6b6b7818edd572b0c561b2edd7672. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZHN81978117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464e9db22bb0a757bd2613b5a90aa3d63e2ef6e9905c5258bca22b350fa3f7e7. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZHN81978123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd954e2141bba83c343ee77ae2e231c5bc63e16efff998311236c510e835368. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/SE6QE2064383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a911a4f6bbd4291db875e6c34b0cae860ddf9e1d2628cf6ae30d612b26f76e. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE6QE2069913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e68714c6b1fbc2b0b84d042cf13b4f94def47c86db6cc7a61909b33a1c3595. 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/SE6HN2143477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b4aeabc209a3a03101eed1e72f6e8e2e165db5a08ca2736ccd427787a51cb9. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/SE5BU2183859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8672b778070aa446423957d9362c58c16cf70d6ae8017521f410258b1b610f28. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE6SA2164591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11e0cb883f9cc03642073278506e005fdd4d47f8783d5022c9774f4c808d214. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/SE6QE2238500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8d19264c4a8fa0d293062c2319b2d0ea7075ba2c32dd64b4d88eefc52417ee. 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/SE6SA2245338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2be97e0ac95509d0023d7cc862138b059f68d55e878eaf8ff9267054eeefec. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE5BU2308801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd4624c41477b4d1e1f2816bd54f460a920a2b54b872e9440ad23604106c6ee. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE6HN2377716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa7ddaba06ef451256873ac6815b81f740844a96affba8e31ba2e0adfa1223c. 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/SE6I32385474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1250b645aec0675f99d850f58a2782706caf9f18b87c64d001ea8f635414db8. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/SE6XW2370835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbaf7a438b4ec0abedf7e163405044212990a86e28c4325576b1275c61af1c8. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/SE6XW2367970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380c2ec7ff8c49a425141c60c0d4bcd67d98f9bb6b9702dfa33d98a8f48b9442. 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/SE6XW2351224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27d1f79eb9cc8a336cc552097823ce1a8344ab55f9bb6175dee0d1319a7d403. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE6XW2247542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2fa2f6eb7dfee12ba2bb641e71775fd03eb5497746901c3f72905927a89fe9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SE6SA2245245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6222f29c4c74a1a7e86b0ae33e308961920a12d2b5415d3b0d6a21f785f0e7c. 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/SE6A92313495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8952c6245b30cdd2041daa3b3fb6963aeda888217eb87274d29fc702d8630707. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/SE66N2387440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76488e53f675f251d4aa874970875f3cee8e238fe6a46b71b14ed9e102962d3. 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/SE6QE2413624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed13a3f187cb2afe9e41a24759b9099d05d9e46ebdff2f872be2959f6d60cda. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/SE5752438188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20f0f8261976c32b226f8267cc71bc1152e2d785761f87ee7ab8930b8d148bc. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/SE6HN2426532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2c95efce7bfacc91028e25f28886955e2159a4f477c60c3507b00bf8f0d8a9. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/SE6HN2462627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148d59b7bb88f034add9824fe852d0688a29b40c118029cb09448d85e4a77070. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/SE6SA2455824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3bdd08c52a2fab647554294b2c122752fea52fc0b23775e220d8c7073e7aa60. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/SE5BU2503449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d472d48c2c69f257f3306957fd5c248013ca452c253a16be89433617fcc4637. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE5BU2576915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bb362334d9ec8a9d7c08722a1f93219fa6410a3413c61b603ec2b42535c72e. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/SE6XY2528554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8952c6245b30cdd2041daa3b3fb6963aeda888217eb87274d29fc702d8630707. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/SE66N2387440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1878a8c96eebd1a7240409cf051dfaf3a8482b0dd78050940a9c97c8e9f80b14. 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/SE6XY2510988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e507396f8df2aedc08d33df043330ed62e3b28cf76f1be6c2a8820c73394c88. 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/SE5752498483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6222f29c4c74a1a7e86b0ae33e308961920a12d2b5415d3b0d6a21f785f0e7c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE6A92313495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148d59b7bb88f034add9824fe852d0688a29b40c118029cb09448d85e4a77070. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/SE6SA2455824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689d7d2f3cc33944125a60ca63c772bd1419291df30f12e676d7d49568d80ce1. 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/QZZ8B2500108.