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 0x4cd1b22ca31455ac0d127bed28f446d89998d306382b67b3d6b7079a137f730d. 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/facb4667-b650-4479-b85c-7bb40ac77ef4.json and https://artists.proofprofile.net/proofs/artist/facb4667-b650-4479-b85c-7bb40ac77ef4.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 0x6f7398c472f6332a583dfc7d387a0b8f0a51e112eb54b4ae704f1041aae1e7fb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:36:19Z), 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/TCJPI1829446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9548d3bcebbe84c54c2378d00349b738359a06227f5acf2ff0f3649c4a76c6. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/TCJPI1829473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cd3269754dde0576f66c58c36780bffc52867c1cd7237216b4ea6f58ee93ef. 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/JPP631100001.
イルカの星 オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e13517b867b30dfe71cd30e2c31647498bbc932289e610978defdf8638e2a5. 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/JPP631800271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e13517b867b30dfe71cd30e2c31647498bbc932289e610978defdf8638e2a5. 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/JPP631800271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f5b1d9bfb408688eab44a3bac1c4452f364dc0aa7c13955c60fb88b9493f57. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/JPP631800295.
A Whole New World (From "Disney Glitter Melodies")
Let It Go (From "Disney Glitter Melodies")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ec9f5827c5527f79cd77c65a119e86234b87c15fcf70c291174b00f741bdcc. 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/USWD12097627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f05a88858ec10f8d9f8f8f813a8557cf4e1d48409eb09f0739a19887a943815. 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/JPP632100393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee0b686dc64a8ab582bf165e05da5cd0395ff36a837fb9c80f229bad7061508. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/JPP632100400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c8c83cae25a637f2a77d7e6e7246c895cda1e1308e388529c2bb76c2f45d7f. 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/TCJPJ2597802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046e87358ea94d0baff1dc02b16fd1ac15ccddd3ab6755f38641a5b5c4678a94. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:03:15Z), 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/TCJPJ2597811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2126e77f2a8aa2eed663bc3098bf977a6743fb264219dcc85d6709ff5f2ade. 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/TCJPJ2597817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e222923b2d1abd72179d803e15aa56b927346231d771a67c4191e5cfd6e7f2a. 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/TCJPJ2597829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c8c83cae25a637f2a77d7e6e7246c895cda1e1308e388529c2bb76c2f45d7f. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPJ2597802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e9bf505bacb65f4c8120f76d8d17554eff73c5742c5fbbf399aa7b35cae6f1. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCJPJ2597806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046e87358ea94d0baff1dc02b16fd1ac15ccddd3ab6755f38641a5b5c4678a94. 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/TCJPJ2597811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2126e77f2a8aa2eed663bc3098bf977a6743fb264219dcc85d6709ff5f2ade. 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/TCJPJ2597817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85cb933c5e60f22970f2a2585a2f13daff90b96e74ecbc28901b79653d688b8. 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/TCJPJ2597819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c26ccd55147fac875ef11d3e5e0373c9ba01c1e1edf47dbdf51c17a155aece. 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/TCJPJ2597820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc27d81780033e5b0603295e6a1588b2300bc94c548b31c61627423d1035350e. 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/TCJPJ2597824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e222923b2d1abd72179d803e15aa56b927346231d771a67c4191e5cfd6e7f2a. 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/TCJPJ2597829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec19b092d81a7f082911a791df254366deb19f0209f58e397cc8f2d7b518ec81. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/TCJPJ2597833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb7038ed3b3333bb6a8f022413a7b61d900fd1d2277d42de442f4e34b10f1a7. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:04:20Z), 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/TCJPJ2597835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45618b63473702b5d9cd5d73597efcdcec38f6470332f5786ff64ba3f34770c. 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/TCJPG1741158.