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 0x41df063abf6d02f0e32907e9d9bf6605c34a173158ebeaf62a43202e0c60a926. 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/86ed6b7e-098a-4734-808b-8cafb631b368.json and https://artists.proofprofile.net/proofs/artist/86ed6b7e-098a-4734-808b-8cafb631b368.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 0x20931c53467df84769d9706658c9df9a022229523e54dfe90e71f68d0e15e5bd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPZ922000122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045016b7629095bf48603710d3b19d86dc9e4b29ebbdb81c5137e731662e21ee. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/JPZ922000123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc020960e5730ae8bbe77d408ef93cdb420636ce710f9dcbe9df8a5f496023cc. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/JPZ922000126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfc96c4fb6954549453dfe4a1b0e6ae13d3715d9c682ffd647d9e1219249b98. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPZ922000127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea2ac6c030002c29c30ed39396c7a518cd058251f3291339ba2ff4086ae7888. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/JPZ922000128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efa31fe9189393af6a1d45f640d70ad1b9c7187c4688c2af1e71c82a316923b. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:00:34Z), 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/JPZ922009818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacc9be171a1e99dac0446dbed434941a45eeb779cfb71eb61a3d530b4320e3b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPZ922009819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee149c5c713a2268eb9badfb0326883d955cdf0de61ee572e4d4d1b82a1a038d. 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/JPW462220963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1dcc6a4414939ecf0ba857a39d7e08b2ea8d669b9a740c5b05f68f25a0376b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:46:02Z), 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/JPW462220977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e3af40ece0d166cdeef0e4f62dda71405ea55804af49aae0dc0151e092ef15. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPW462220976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25200ede63f9e6ec1e9247eba3d56f1886e77e8cfe3808ae3ca2f5e6dd9565c. 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/TCJPP2177624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd5b93b50f3a79e08634d5cc645b29ca9806ce2d0b9cfef5d332ca2d46d3cdb. 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/JPW462220967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa790936e8b9805c7d29c024833145d62f5bdcbbf61eec770c77d06866f5056c2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPW462220969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba3135fc0cfa08c785eba069051f7fdcbbb5d8b32844d910a5127d708eebd4c. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/JPW462320978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b037e64964396a788d3cc1dc194ecdd4150356d168f1cd486f322995e123313. 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/JPW462320979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1239812aa592f6b1a20df55aeda2b00284de3d2637162e61a5fac79b10b98b34. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:10:50Z), 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/JPW462359931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09942490aabd586d82ec1d601fb7c497553fd829af08f4625a30ae176763e44. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JPW462343997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f51fe1dfa10dbd68ddec3aca27a648e633e5d2ce8bdd0c3892dbcc5f080b22. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/JPW462359932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a976fa66537a3cec5e9b3f07164450618ab60ed62cc38970567ba84924ed612. 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/JPW462350249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005e73ee48e4d325f1a1991d0c0fa4af30f2667f2e826965ba9ef2dc651a4577. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPW462359933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704ebef4bb6a0cd8d2dbc1528a1f3983c6668bfabd66b05292d0d212b803f37d. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:39:49Z), 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/JPW462359934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc215df0a08ad60df39ad5e4bde00489e33d70ae8ee9485b3a1125a732213c761. 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/JPW462359935.
ミスター・ハーレー・ダビットソン - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419dadb07a99c070145dad8c3a7752eae0cc2fc2ff05b33ac89fee52e8428c88. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/JPW462359936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c2a2c4877c7dfec4291157ac452e5c96a637c75fc61a40568eaefaf1516eba. 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/JPW462359937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb7a6c9d6c5bc8eac44ba9f7ed5ce2ca9cbba5eb3dc2a6a0fece17ae72d5212. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T14:03:47Z), 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/JPW462359938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bad29d37093b59653ff80ac3990e36de35ccd0914f39b45538204436d3bcc9. 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/JPW462359939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc8f858eb192fedec8e31d617b17a7f7374a55f15abb3a1e45049701d597030. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:31:49Z), 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/JPW462359940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27778e9368a434935eaed013815bdd778f05bb5f96fb959daa5e32009b4a46c1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPWP02301415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd7db666bd1a7e9af6da2f842a51e181d7fb5462b03a9f924c279d1f2aa50e1. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:56:22Z), 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/JPWP02400221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bf35d33f8a967bd40cedc7185b2321578492d17550d56d0f18ac4ccc04e95d. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/JPWP02400872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045016b7629095bf48603710d3b19d86dc9e4b29ebbdb81c5137e731662e21ee. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T06:56:36Z), 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/JPZ922000123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a926e2e219fb90a71c5733e642f81224f615cf4b3aa2bb3a3ad88203445271. 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/JPZ922000125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3979354265747a478d7167c7d1f14db229499bfef51ec9f9c586c2a8b907b68. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:42:46Z), 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/JPZ922000124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bbfac3658e12ce5923ca0c7942b0d3725058d04d77df93b38440cbc761ac32. 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/JPZ922009817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42921607ca82a150ea5668691072c8bc9875ec180796f826ee9ef28809ca3d00. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/TCJPP2177424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1674f4efafdc7bc194ddbdf33163d7c172aa1fd0af1d7964643f3548b7b8409. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/JPW462215226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd5b93b50f3a79e08634d5cc645b29ca9806ce2d0b9cfef5d332ca2d46d3cdb. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/JPW462220967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27778e9368a434935eaed013815bdd778f05bb5f96fb959daa5e32009b4a46c1. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/JPWP02301415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bf35d33f8a967bd40cedc7185b2321578492d17550d56d0f18ac4ccc04e95d. 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/JPWP02400872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7f032e13c43737f317bb6784ed0e24f30df46e8aa82e99cfa9034b876b36fb. 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/JPWP02400906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b4b25898e4459f09db7a04884edea398ae0215f7d8197446a8385e5db906e9. 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/JPWP02401396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7a04033dde764c39fc7ddc951eccacb4bd00927f685f2fc188ec9cc271a687. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPWP02500557.