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 0x602e898bc8f10505e2f006c94961944f7f7734810df3ded661ce05a98748020c. 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/fce6edb1-67fb-4f9b-8e65-95f27a1b0ee7.json and https://artists.proofprofile.net/proofs/artist/fce6edb1-67fb-4f9b-8e65-95f27a1b0ee7.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 0x4dbacca484bee4967e0b9baba9854c88b5e56de406e02a784668d0d71d74ff7a. 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/CAM460603135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734e52dc26d884dab351242495c5d643fa83c316ba5a25aed6f7c885eaa10d69. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/CAM460402590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2110a236fd2895e257743310b8fe6bcc67aac04dbc2900e616b5a5c79d752044. 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/CAM460402331.
恋にメリーゴーランド（In for a Penny In For a Pound）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b44bfe0d390a7f721f1ad4f49c7022d7513095749d3a66cf3b9c997012adab4. 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/CAM460403083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dafbdd85273c12cd470171826b7b99986c2d6ad9ecc6761503712f43cdb4df0. 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/QMVRR1202331.
愛がすべて（Can't Give You Anything [But My Love]）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60233b6ae5361f49459f481516b567bcd403c20cbfea49dded71918eedbec326. 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/CAM460400665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1ae4b8b732fd0d6fcf9b4308ff9f12f2c5fb946ea5c1cedab45071fc311130. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMVRR1202531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6872f76c80b92efe12ab8f28c8c1108af9f7fc17742a9d9e3ffa5ee874c364e. 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/CAM460403285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dbc4ac79c065bba11cabbac23f753e44cccd9ecd9a22a07b25d39a4864c1a0. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:23:55Z), 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/CAM460419841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d76db97ea05128b187f7a419584c34ab8ec9e986e870f3a484fc6eb56604e2. 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/CAM460405195.
ジャイヴ・イントゥ・ザ・ナイト
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a96f80a6741fd3c4969f62292cc6b17467348290228056c8cbfa587c2c51732. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CAM460404868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad94ee7b97ae71c2e00000b72f471abb53f5b659e560d6d3f4e18d8d9cbf2fe1. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CAM460406270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba0f1908a2236cd10f301deb8f2aa6f5048dcbcf422a18b8faf2d31e567a135. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CAM460407441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2737354c0f11a319b860aef53de3bbb964f5c652bedff13c4e0c94ff44746b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/CAM460405607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6c42ae9986a66eab1e5f5407778599fd6d59994a8b6dea196e2cdddd4130e1. 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/CAM460402102.
フラッシュダンス…ホワット・ア・フィーリング
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc18faa7ee7540f1c48bd4fb7c7797a6dac151fe0814cb29499e75991c48cb8. 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/CAM460403422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e4ac4b7284d01556b26fc8f179325900af7a1d26a7b83b7a387bca753b3aed. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/CAM460401802.
懐かしのディスコ・ヒッツ！Non-Stop Best（Mixed by 24 Hour Party DJ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c077ba12ede8887b94fa5e2ee06629037fad30ffe392809f1d8180e93306ed1. 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/JPM401550048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cd73606aacaeb749742428717a2168c0fa0e765c096d4f47348502d38be8c9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:08:35Z), 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/JPM401550050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67e3e23dc3bd44990a6b2227ecfecfb2ced3057793433c4d48cbb564165cea4. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/JPM401550051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a311f42ddf3fb302247d7c3a9ece82c114ae49ccf2a20b6d0cfeb995f30510e. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:07:36Z), 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/JPM401550055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23abddf43a44d422de1ca60ed2e6aec56ef806b6cf65b00c25346ae0ba86cbe9. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:11:48Z), 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/JPM401550056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a750560b504a652382fa3ea7b14573f6af6a5f16b20dbf91aa1797dc62f275e. 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/JPM401550062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccabf8a36ecf5049c37a8398eaf15e21c15beb3891b173dbefbc3b4a5db5cc9. 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/JPM401550063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d65a8fc8ec9da9d0ff1c94fd2edc0f582519e51907d551e6178117672e7acbf. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:28:08Z), 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/JPM401550064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe918cb174644c7a7aa00a51e7e96e6d6c6221159b7b95060d84b19bc785052ac. 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/JPM401550068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030f156855490a1f74c62731711aadb433833a328c6528eaefbb6d94dd14a1dd. 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/JPM401550070.