1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0c59a59b2a2bc28f13e67f75f8e090144d9c93021a87e40512d3d64e6ac88a53. 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/f2d8ad4d-bfb6-4c4d-8595-55baceae6113.json and https://artists.proofprofile.net/proofs/artist/f2d8ad4d-bfb6-4c4d-8595-55baceae6113.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 → block OTSBitcoinBlock must exist at that height 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 0xc35c4355cb1e694bb16d2d9c2ce5a8b695b4616d35a3f873542f5397d5a9bad1. 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/JPZ921000787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58027e22e40c7b9328af6f03f41e3e40fb17466e693d2eb218de94d8d7b451bf. 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/JPR501204751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab98a721b75d0e6a5efa66e47086a79ef1e88f02109fdd422b9cc520ed8c669. 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/JPR501204763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401072f1ab75294a66698f304fd7537b18416b43f8070e0cfd34228b6ebd44ce. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/JPR501205663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b71246a564dc5428d47599cd0548eb9c45e703c3c86b197394e1dc70797dee. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/JPR501306336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a50358f95de7fe56af3491f1b90353b7f4c669566f45ee202261e71a34dc12. 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/JPR501409479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf621dc3845db4366eca9e2218d37964413e6d400c4ada510dfec99c4f8d15629. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPR501409480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d8e053a3cb2bc4e8d4b3448464ef1d404ce4c823fb78d5f955fd5da942f596. 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/JPT671400358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73a5c73dbf26e29d7c7790b364a565e37876fbcfd3e83342193312b6288ef1b. 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/JPT671400464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e11f783a6d4aa051b79b49885f6269bb501539c0befdd65f81baf4d0d509009. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/JPT671400469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb55e033a2f393423255a778233d044a8811e3551a61ec3b9d204e0d84841efd. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPT671400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fe1bba2a7e61c4b231c14d7bddbdf75d88ac9dc84f8ba3ab16331df02d98c4. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:50:18Z), 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/JPT671400317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f285edbd781078721de7f3828cb3fcf88f9519cc45b3e6a7a4dc90f167acd07. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/JPT671400476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548c39a2b8df9219aa639f5b24f9b1941678d4e81ad10ac0144fc8a6f05d6302. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/JPT671400540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30772007dbfdc4659627b670ae1ed71c0104187d58950105ba7e66b1cd5338a6. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPT671400538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f354e2e94781c2b9fe343c9dffd4a90875579ab0a27d62c013e8667a605833b. 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/JPT671400565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b96d958e2185e512e58b0a899c7c163160e1e401b931c8342fbafd723a3e763. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPT671400561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad183575b83948663d5f85b4283bc1cb85f492ab9022b43dd865a537862bb2a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JPT671400563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee1dfd73c8a668cdd774db2f1b7ccedfedfd58ab5ac77ec3e9ae42e3993add4. 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/JPT671400682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a987fb265bde59f64f515566cc5a948a6e002be25d076c25dbf2579eba22708. 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/JPT671400700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277f8e065d0a1c367503775f68f27fb2e0c8b250ebcc3ca89ca149947e607afb. 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/JPT671400651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9b7272f0425c36e1dbf28fd7e10c77205814afcd0f17384b939763f02179c3. 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/JPT671400695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277f8e065d0a1c367503775f68f27fb2e0c8b250ebcc3ca89ca149947e607afb. 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/JPT671400651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6975eb6b571ec9e9771c592d04c68c8c7bc075a01dfa1d0d9682cd5c4d14bc. 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/JPT671400681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ba170a4d14a0e9bbfb2a55615a8927755d7a5e0f051e57210736dacf6157ba. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:05:49Z), 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/JPT671400795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9b7272f0425c36e1dbf28fd7e10c77205814afcd0f17384b939763f02179c3. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:54:54Z), 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/JPT671400695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde48874e4759f392fb82b4c16fbd61dc2ea8254e98f9cffec1493e8047545006. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPT671400798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a821f2d5a3d44107ad9ccdb4b3e0cafce1eb5a17f927a869909ae0a4e72e81e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPT671400759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2278d3fd9a066101f4e998b8855386c5d7650ea519bedfa0d2efd53ef49975. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPT672100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cfda18e4639f6178660e3f61a3ac40f13684e28263423a4a28adecb385ef7c. 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/JPT672100010.
愛シクモ切ナイ仄甘ク喘グ其ノ声ヲ… - 再録
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cfa605989a46bdd34b3656cdbfe08231e5eb009c2e1a114ec8d4ed0815d057. 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/JPT672100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f37634635306a675948b7bf19ce123ddb9caacdeb9891446849f4b7134c8163. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/JPT672200027.