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 0x6b7fe3b37776392b7a901e218e74bcf9d3c9fd033611e5a3fdb26e405a2a3bd9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e550a7e-9fa5-4d11-b574-439af0c2bcbf.json and https://artists.proofprofile.net/proofs/artist/1e550a7e-9fa5-4d11-b574-439af0c2bcbf.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 0x8b38229ed8017a1ac78d67c743a3def8920faa6f7b60fefa8fc56a1dd6af9608. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/TCJPQ2109926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9dc59f687709581704d54cb2e5741200e78ac50ff0f3dbcd688d8268c75051. 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/TCJPR2219141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085382ff77a84c527bbd98cc796637a96caee4393a5d0a355d3964298486a426. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/TCJPS2203531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3328a0d1f8481e0eb957dbe33f48e94ef9e6bb7d3f8b85e7124f699ca9c53e45. 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/TCJPT2241979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296d8814f3589529571ba43f2e41601e56bc079cc5635dfb16ff67357488e9bf. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/TCJPT2241988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa1ee27ff878de92cd78a28f096cd04ba7db7bf083e85a99b284cd998a5be1e. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/TCJPT2241997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4aba8d4db02a6b322918822059dad3ced35ca85c2d2e3993c63d07cd39f88b. 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/TCJPT2242539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1f280f46db14ecaac4ddffb474989e35703c66d8731fcc6039aaff22a69a3e. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/TCJPT2242547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80a2f992e6acd5b2ac8d4b39f9c24423b9162ba418f1400cb1110f331684f46. 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/TCJPT2242552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21309c644cb14b20bf19f9040712f4e48cee13c294d5db77fa351fac509918b. 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/TCJPT2242574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5286946e3e01eef01343d932047c463396fdd57e9edc0c20a4c93f5e315498cb. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCJPT2242582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb953d4d121b5b77d734a44abd07cd9312ce4f095bbd02205bd09d08e58202be. 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/TCJPT2242596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe354b631b41cc1f0dbc7c188aadd0b279d48b08ed5013a12bd82e0310f0f105a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCJPT2242605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557035ca94def4e7cac3a7b613ed6ee3e7badbc8f41b8b26a46030adce2d2e4b. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/TCJPT2242620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400496a92a6eabf4f1f2daad7664671aeb84588af988475ef51951666a5d9ac0. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:19:02Z), 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/TCJPT2245879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586ef874126b2a509a1d7a63f900e555f5ac0f5aec22cd3eb097c8aa34eed5db. 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/TCJPT2245915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd610b06ce50bac2b23cc3e394f4d45f32e878842c655b02e574e009373e9a8ee. 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/TCJPT2246021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d1fb479a50358b7f2e0678e626ec1c3f331ab9ca32ee55c25427dc2cae3aa5. 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/TCJPT2246056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6270cac19ea5d3b4e15b2401b082e6ed194fa9a974ec4d140c3df0cc303bb302. 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/TCJPT2251097.
The song that was supposed to appear on IPPUN_GP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87db559239414f1e5523269dd62fc2d350d4aa4348c269ef39c9a2a0a0c2a552. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:09:26Z), 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/TCJPX2358422.