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 0x6bb756600f06bc54b02c6e87491502032f5c813f187a0865611cb4ed8767c966. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4f5eebb-443b-4c46-a739-a0f1c608f78f.json and https://artists.proofprofile.net/proofs/artist/b4f5eebb-443b-4c46-a739-a0f1c608f78f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ヘッドライトのわくのとれかたがいかしてる車 - Live
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 0x521e08514f6a54a5efdbf151f216ba28c52541ec34e27753cfd0ae26f486c438. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPU902105536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b09fde33b86f5d41271a40a84099b9467a13be5ecb0bc68522d8bd123db070. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPU902105537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3dcfae5c8558612f7a0621399b1eaf21295b8bcb2cda6f6278e53705d84e8c9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPU902105538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00ee745adbf9e7537c1274069ba637078367cf2c480cec44ed6d1dcfdaad8a4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPU902105539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc697cb67109126ceda1d5804fcb8c1dd52a1b4ef13857206149b7517d95311e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPU902105543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432729f2ccbd6e6c4728ed5b67185f9a9a6cdb828ca43476c083ea7753d91c67. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPU902105547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f21324090c65b1e43052ae160396c855e7408ebe7c4bc053b248a14a89eb3c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPU902105548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb47134c37e2658cc5edbcea09163e443e05be4a598d8baf29b50dd079262dd3. 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/JPU901704048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc0ee645d2307b1e34ba06a1df5387c4928cf88d9e472359ff7b2a30e42d2e8. 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/JPU901704049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d158a235258cdff66390bcc36c9ece0c01e12b53a5a05c7ec75e5b70874925. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPU901704050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca2058707b477730ed34cca10ea725ab15aefbe36a8267681600ace50f99561. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPU901704052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3124e461726497315e89ed83eddcc317199fca4c4c1e4d68c53cfb7e112eeb1d. 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/JPU901704053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba36dc87fde0fcb28ef27e40472c1e79a0d0b147fca614d10bca42914f8cef69. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPU901704054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688686044494f26181a8832e2b643d6b9c449181da1cf25723d9eace6c3d9a45. 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/JPU901704058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef547ca9b1b4cc1c3cbb335299d42c227859782180c35b2c93b643e93a2ec18b. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:56:48Z), 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/JPU901704051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9695ddbced295d740fe1f3437c2366a4f910819a73e183085f965767094fe990. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPU902200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e6ad30f3fa2bbc9722924eac73f640bcb5a062663507985bef1b2898afc874. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPU902002022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae1d1ac75068d86b33c1209ae5bf3738b0f53434800181a50ccbac9edf94a92. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPU902100267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd0f3872ab5ec4d1340e3083722357c07c171d9aa8ee1b7e288e8c6e55923eb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPU901902555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2e6335f48ba856dca2068a10222b26adc609006cca5e347c30be68b7d7e57e. 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/JPU902100271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e19aca56248668ac7c545afa0e3008c24cd25e990fe54e8ae0adb1f63ebac8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPU902100273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea94a49bdabd1ef6847607f9505f601938dd2d07080585b4c47053320c440c21. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPU902100274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa3827880970ffbb1edc24a786f162bd80bb5d5cb22b00dc48b65e24c6f1329. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:46:45Z), 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/JPU902100275.