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 0x82ff0e9850ccf213c24e8d0616bf35f95272834ce6023e8bffc391ed241703f3. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/63673c95-3880-47a1-80c4-9d989ab0df43.json and https://artists.proofprofile.net/proofs/artist/63673c95-3880-47a1-80c4-9d989ab0df43.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 0xd5829922ddf4cbbd2c68239dcf9f8115163895242f6d3b2deac38c3a0e260b79. 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/NL1ZN2201948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343903b6cccd4f441b6bc934d045dadcb2038ad283f376e3dcfd8372ce801214. 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/BE5KW2300442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c90e1682d69d090394a3a8529394337c658d9c7a18e689a2e8ea8445a5ffb02. 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/BE5KW2300444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb06e3a8c2212134525a1e0a91e35f36c09959b2ba8b4b7ed251c04e713f4f2. 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/BE5KW2300446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0459ff4fd2e21f375df604a6c2c47648fe445c4185fc620b3a101581f37a7658. 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/CH3132318304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a7120ac8eca73d0ff71d858325e96f5edbf917fa5d56801b4e1516c681f6a6. 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/BE5KW2300448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ae8ad73660e96d104d8457697fc3d7216ef5e5acc4eb0ae28c2a22b3e3e85d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BE5KW2300450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fb436516497ac749fea8f74da3df0401ac001d1bffbe5220f5352187efbfef. 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/BE5KW2300352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54cd1896b0bfdad76070680f66e2f34df44646bdfce8d0191fd10b9cedfb90b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BE5KW2300433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0174373757472fd9bbc85be7835f5292a3d28f216da0cc6e3bdf12fe21e33f6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BE5KW2300456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cf0cc0152e4bdd8e40e97827fa23a9b0bcaba317ed668c58096091de71a086. 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/BE5KW2300430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7976e41f0785ac2517e3f2463078246d2b31c0ee7ea66f8f09e3364c1d9b0009. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BE5KW2300421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6f5470823bcd36ec26329358b7a7bd48bc33ea2eb093e666f704771fc133b8. 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/BE5KW2300462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a54c721fe48b98532de0ad104b63505fa73263cb647c3f2ff4e4d3239b49e6. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/BE5KW2300458.
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 0x85b3b9274f81abfc04725fdbffe3f1b2f36a07500d178e015c6274753eb3939b. 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/GBWUL2400623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc8fa181a3f2ebae4235ff2f39d90829b4993d96fc328a087e6604588f616bb. 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/DEVE12400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4c06f80ce21bd148425b3ed775946e1daeafd2848a8667a83e0fb17ea7aafd. 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/UKHKF1240061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb62364dd6dec2d3175c4cdb41ed9d0af36286954a3f7c774b7b55d139cb1ba. 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/QZWDD2363256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29be809632c1edea6aa9868fd92fcc29062e53a2f61e1da807b4b2ff29377b6. 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/QZWDD2363258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a578081dcd57302b161274a9f591aa33250718d55e4c3d57e08a2893486b7d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEVE12300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd0c21879f4db94e9e0e9bb396c660e6c1d036e185cc946915d2796d848f13f. 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/NLUW22101354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b1211dae95dfbd55f1e5ff4c8e04d87c3c5087af62e910b65074dc99eca6d8. 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/NLM5S2001034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a99990ef1107d3d025213885df902cd339d43c06dea4873bd33cbf618337083. 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/NLM5S2001119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1dd7e8c68e6215921e030949b2292ff01fac476358bfd575eece4a3692da6e7. 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/NLM5S2001124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7d77d4461bbd11386e9716ac406942d4737a17f759c2b482571a14ff86da1c. 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/NLM5S2001135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0707c5bc68870bc01b20ae1e3cfbb3ca0eb9bff178361f841c46f5e65655c7fc. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLM5S2001137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ec4d01029868a1947c7b6890342c8960a16992187a8b1d19457829504befb8. 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/UKR6V2383179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c931dba38e38617e5b10dfb366cde13315d9702c4455d15ece89d74f6755e78. 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/UKR6V2383053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7489fecf22fb595bbc6cd3f86f49c09e88d6a21a52a01ca8d7853ba6d15dc59. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/US83Z2487760.
Abendgymnastik: Tunes to Push Your Limits
Chill Executive Officer (CEO), Vol. 14 [Selected by Maykel Piron]