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 0x26eabf27f5fa7a7584952a27c89ec3f7e77b75671e506a7f93735aa385b662e6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acf3e0cf-f5b5-47f2-bb16-e8568f60323b.json and https://artists.proofprofile.net/proofs/artist/acf3e0cf-f5b5-47f2-bb16-e8568f60323b.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 0x2898c74cf92b7dc970d7b808a83a6c0637eb3bcc410fb4e1596eb676d069a554. 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/INH412501335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc564bf88e36a41c5e2e48340ed59c9e0c8858034e922a66db5de8128c07ea125. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:45:45Z), 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/INH412501337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbd90ebac13d0527d147c5ecf136b7641cef054d6cc77e21af12f0a9dbf9f14. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/INH412501336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cfdb8c609d57a7f53671e7caa49f9537bb706e866a7ea3834d91b11e0c57cc. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/INH412501350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ccce5892cb85de60234c96513a48cefab6fd596c11fec6e10c933a33f4e0c0. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:21:21Z), 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/INH512005958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f7657c77d4f6645cf405f56d0ce4745efbb7c87f8e0ad1173476dbae3ae04d. 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/INH512005955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04cbff7910380cc1ceee1faff7b2a86dd153adfead72b544a4df1b493395e1d. 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/INH512005954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d11a42fc1aa7a7a4a0e39180d8814405fc9042d3b04b42754f27de2a76c713. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:50:03Z), 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/INH512005951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02480d66037aa062fc265992b05a94749600f92ba3aa249e07aaa15a5b66bc35. 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/INH512005949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404dfbf5843cd557912c407d2b48f2e70d20bad7427986cd057cf0c8af48cf9a. 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/INH512005948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4d1e3bca7268519d64c5cefc9c4fb414121fe28a6f1e2607f0f33478050801. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:36:59Z), 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/INH512005943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070c33d877f662e7c160da2fc9f03e7bc396f9cb4baed1eea2111f37c1b27853. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/INH512005937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5109c1a9bbe9128a7a728ea8e2eb1d834ddabf6cf263fc9c90434bc4ecd414a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/INH512005936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185ec521ad7e71054de674329525c493c9778dbf1ceec2f023cefae66cf57277. 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/INH512005935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d483baffc3567d545480f09a17aac40957252fa690783b8cb19e9678093b4e. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:48:18Z), 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/INH512005934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d9f9d6e6cf70d85045ae32a71e38503253ad4d692a9d59fcfb0af0a344e7bc. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/INH512005933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6490bcb031a27e8a38dcff9719486a1dae3fec82715cbad8238696b0e0a314e1. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/INH512005930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72e1b0047154b60c912224378c9cf1320f5d4c4238f086bd48d3c7e91f7efac. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:13:19Z), 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/INH512005927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1dddd25dec619b9b6f3a5e770fb47ff561b07d6ab18861271d76109485f359. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/INH512005926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81ad7dd4ba2af9f86c1e01b4c40b81f7ba1ad8bd1a094639f165218fc68173f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/INP1L2400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aed6feeb1c452d0ae6cc389afedc9f4eca1413261c6d70a127c376e2b58e675. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/INB2W2201335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9894c9e136c5d5a24fcfabc7ab26b3b8d7f42b0d818e59fb84d4b17bb1a478d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/INB2W2201336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63cffa8d91665abe647cd58724f8cb32b923e81cc737d8df2451e8e7ef7823da. 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/INB2W2201337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf06621a055b312c3a0d3d8b0bf8c577213e957fb9725cf9a60774e26756386. 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/INB2W2201338.
Suwa Title Music Tari Hari Nana Suwa Geet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f846d180115e1d2faa9f9203a60f50f66635c6896464c6600f68cbcf0ba49c. 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/INB2W2201341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcb37a91887391a4b6ee61415a0a3fec30748a5d8328d1ac5fd4897dcd3d4de. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:42:24Z), 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/QZYFZ2354223.