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 0x5ac456d24174e582ba0ac78c7efca552149592daf7b57ae2558c6e83178ef0ec. 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/2d8c730b-aa5d-475c-a4ad-729edac91c46.json and https://artists.proofprofile.net/proofs/artist/2d8c730b-aa5d-475c-a4ad-729edac91c46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Anjunadeep Edition 384 with James Grant
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 0x54b78ba1f26658173c1738ceeea5f667f7563209ec50fc83f5efab7492fb5aaa. 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/GBEWA2200660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c70ac02eaa9c54ba32ccfc507fcb2d50de1cdfb181b33c1ae9fdc16d3995394. 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/GBEWA2200661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc0d066f8d33559dbc4264c9e8d9ed47816413cd6854d228d6929a2d0e25808. 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/GBEWA2200662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55a94f6bade1b3c7e5d9bdfe55fb3bba39b9b116a5f2af5e40b2610ceceac6d. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:27:41Z), 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/GBEWA2200663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb65545f8b78b6fe755c6d8be92019dbda451c643ad403684be24a7993b1fd0. 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/GBEWA2200664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13673bd9b01e9f512f1d7c38a7e3866f6b3eec65cadb12cdacdd59773efab4b1. 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/GBEWA2200665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa729d43df4e101db299b94f6848fb759ad6b874403f8e781467e665c3ab60f0b. 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/GBEWA2200666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cdcf3eb2138d7b6c40d4472253b093fc3381e52de7b09cd2b48cef08b4ca87. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/GBEWA2200667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfd91dcbe79909aeab2d5f3a7cf6af3a9959decd59ac39e67b721688d37d854. 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/GBEWA2200668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58a39425561931b2884e7ccaf9d168ff420a698dae1f21bd9ecf0802232dd1f. 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/GBEWA2200669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eaae1703cd8eb03a239abba6b1c86a1c0ed64fc6fc483cfa7819af753a85346. 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/GBEWA2200670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1ab7dbc16cc17bcd6c7347bdcf125737f92e8746fb291088fd247200222bf9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GBEWA2200671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa853aa82bd4f8a35b9c53c437f8a90cd3b87d3a94de7284b49185cec9a28bdbb. 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/GBEWA2200672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a5524c52445f7ea48703b21d4e3db477df49409ca98ff01843ff2d81181b1a. 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/FR96X2147594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051f6a562a95b7626bc38c065c483819c8dc76e477bcdb02e9e9187e056e3b0c. 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/FR96X2147596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2369e0daa29a360d41340e88072ffffd988fe6e2f7ee03cb7620695adc68813. 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/FR96X2147597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca27a831c6bbc243d2442692ca73204bf3754a5ad4c54151072ca6abc53025ed. 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/FR96X2147604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13526c708ef7e0540e3370d3a19e02630ddabaf3b8887e49fa667e9dbfbe43cd. 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/DEAZ31610725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecd15757d054713472cff54d8c98a75d16ed11576f552c3765cc7dccb32f4ca. 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/DEAZ31610727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7281a671de200531a461ba2f74f641191f2f1c55f0e7770a4f4f6c8d3475c817. 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/DEAZ31610723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d02a27957b11f5e6509edc67649d3ab969e3696596031a4a7c52a15bb3e9ce. 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/US83Z2354373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300cc21a976434221a8d6058a571db0d75dead980feb58cc82f0293bcc43bd0a. 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/FR10S2430972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887d8bac173e6a3bcfe5e1d4f1f99568f2c3cafccbcacab9bc393172559ba989. 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/FR10S2430974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4023de9accd838035d6d3c680df34f0dc673ae2b9266108ab0190918de04046. 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/NLHR22300586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d024fe971b47fb75b173343dd75339126b3d0f30f67d684137549f923210d0. 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/NLHR22300587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2803f554992462409fa2da172bb0a74b442176bb354ad47b5b388f7f85880b6f. 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/FRX762243260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9462b6f0903a33455e51d5f3943d1d8bf77a4c602092c3255c27607ab7ba39. 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/FRX762243261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35690993c68be6d765be0a103b4f67bde91e5d16c264e9a579b3cdd1caba8044. 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/FR2X42296664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8994eba5fdb3a7e98b8241d644e720275f1753f6459ca30e8ab9766a1e00a2b5. 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/FR2X42296665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406df386a29bcd331a526daffd06aa0cda4e1975ee3883d86d238d45202d6962. 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/FRS182106773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1506237000fbb4e40f9af227ceb2646a76d558c363827a5c4cb712de387a9ad. 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/FRS182106774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ef66da00a3e2e5978d9fa1af07244b4b2cc709e6874b75ceab3d9bb818ab0b. 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/FR96X2199377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6004d1b6be69a9c992315a50cadf6f9af77294d88b5ed6d463e2e202e85cc264. 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/FR96X2199378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae92a5421872caa905fd1e1cc6b59306ba380bf8c75e3ad02d1bbc4ff2905049. 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/FRS182043849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc0f71368ad1be4b9b1d1025b2c223042d5ea4dfb60850a1aff40e332826e2c. 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/FRS182043850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01d175835cac40970cdfcaff20bd927e8df24974e495c62ecfc67708c8b6554. 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/NLHR22000374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ba8e584b92be9aaec5bc8a7b2a53a3fa3473c40e2f739aabe1e02433ad2a56. 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/NLHR22000375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb2cde79ea0bbf124f826d463c38634b7ecc9db84efc0d1e23e032e179b1ef2. 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/US83Z2001072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7708fa13d7381638d4aefbebd4aff2d209446173a09f6614e461cccccf3ba1. 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/US83Z2001073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b40388468883bab53b98d2c69b03b2d6c6afd0a14cf97d26ce3a76d4e2f5d3f. 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/FR96X1934479.