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 0x18fa5aa2d6d4b82e638ff20edffa30c76c1fc74b26b3be984a1480116dd893f5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96528261-ab36-43d6-96b2-ce9d0b6caeed.json and https://artists.proofprofile.net/proofs/artist/96528261-ab36-43d6-96b2-ce9d0b6caeed.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 0xdd66b9ffe997de3cd8892402bb5d068f6891587bccf5a4e52053b8de09ae0bb4. 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/QZZ7P2503918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c047d26a0bb6e57dd2fd0a69aa80e31e7cc5ccfed49028b76a8592db73d35c. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QT3FE2505960.
Enmusao / Dembow (Versions) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9643f5e177292e555e6b3bd19903237ba53c3913478156910cf50553f43a49. 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/QZZ782590651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04174d96dd2989e7d773e1e9719c5604918888dfbcf7cd3164afd32e6195ec2e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ782590654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a678c6289852d515a0eeece7ff6627467204ba6a042a87ad86b21c3c04dd05. 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/QZZ7P2515953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf85a9180accbce3417cd8972d92701a04ad03ed3bc4dc51cb46f48aa416dc8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T09:03:00Z), 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/QZZ792537934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b2bdce59fcc724dbc3cf88dbf95ed6088717daf7bd622d277347c8b592374b. 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/QZZ7N2504563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc629108aa27b45e71830aa09251f94137f65c40b0d99cbde969e0edbf2fad084. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZZ7N2504564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628611afb26a0c6a797fb43074f6fab8ef50ad9c0bae65334bf92fa66b2bddd5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ7M2588292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797f9f1870deb549d28c9e44f9ab5de2527629ded6130789187d0dc9838cba00. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ782590645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4844478a2d7f96f85b85821c13a4f16b881717e35ff75c1cf02c6262415266. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ792595088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ad380451f1953218477eef9985748d99572e7391b1c4b6d2209bf1ddf9aa6d. 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/QZZ792541215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d2e42daa98acb6d230d36789d524c3572b820255c88ca269a12b03715a161f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZZ782590559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefcba26d0b838d239552c03934afa9b5e8fa74bfb98519dcd115ea06914c93c. 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/QZZ7L2500497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe374bea572952133f8774ef8423fd701d6de04e0ad6ed644ddd3a1f54fc9fd99. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ7M2534032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5730bef1cb4f64d832163c54dd548dca0976d0a00fc0044d9a1fced4e07ebfa6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ7N2570588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6236aabe3fe156776d2e7adfae46ebb42de764231c71de98a988ca3d5bfd57. 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/QZZ7U2599675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c93e7fee8ffc7b1e1b22756170c2d9dfe7301adf40f697fcba0b535f7addbdf. 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/QZZ7U2599676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f69015d6a4687608a830d5df0706fc7d9fbfc984ca0b7dcad06c10f9689de0. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:56:21Z), 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/QT3F22596508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f646c44d717f2dcaf3e4bbc62bbcdf083b2abd71218d0dd1e0bd4a76cf8161c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QT3F22596509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556a4987546ad356874a60f598c468f31a516459b9d265a46e64c7b71915f6b2. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:41:21Z), 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/QT3F22572928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc7c7f6b1f1b07367563bde65da70954387016e5298d0c8b6fb929d22bbe97b. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QT3F22572929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffef798fb7a49487476a12cf5a6608700dbfba8707a34180894a1306eae6b12. 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/QT3F22552400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13971b4dbd90c8ddb25fa92049d0d26d1f7aa6e69fa6e91b66842663ae5633ea. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QT3F22552401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705b5466c8557a03b10aa4eea3ce1b06289a730c03ba60981cc566cbf5d4f6e9. 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/QT3FA2592242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fce2567c9574258f21d889b3842d9b3403d2860289cff77019f3a5b0101581. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QT3FA2592219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3852a440bad148677bafef808ac0616400d26928575c0f726770b94656e8bc62. 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/QT3FA2592218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf8d2485ad27f715d6fe5c7ae86004f8ffa99023e9bcf0a55c40b779290fbcb. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QT3FA2592222.