Janji is an independent athletic clothing company based in Boston. The company donates some of its proceeds to charities dedicated to improving access to clean water and advertises itself as being res
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e494bb96c086798fa1d19a80c93583b77e2c53f09b9871312df6bb2274f4318. 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/ad1fa512-7d10-4528-a50b-e6209eb2f6fe.json and https://artists.proofprofile.net/proofs/artist/ad1fa512-7d10-4528-a50b-e6209eb2f6fe.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8501fb99942e496791121a9e6cab35dfdbafb7d74f61dce78d3dc924200e2728. 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/GX5MX2330105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441b18137cf27eb9ec1d18a19a372f532f3fe591489ac1d355576f9a8993d050. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAHA2393586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3666fc7cc80b945bc2b70374be1909ced33ed2b26262863b96416fbad147d2b9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAGZ2354353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0523b79ebd67f67a740efd407b36d6c8dd8bdb69e188424ef048a7ee0e6140cf. 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/NLZ542200574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0cf3d747ff277b6d1e3d0404a6ae41077f6e997204019d6d7986f1635cf1ab9. 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/GX5MX2187115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ad5fdb2edc840bc0196b6499ee4beebbdcdd0aa9fd074350e74772476c847e. 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/GX38U2199517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b9783b6937db53322a97bee6f4c86d5031cce5cfaf8cab0301fb150638f8de. 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/GBSMU9515576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2e10703492673e549681c1ef8feeb0e0adfdbad7fa6efa4adf34b6b8498f72. 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/QZMHN2090566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a516c472282d84994ac6d4bd37ed8101a4ca39fcddb4a13e0f00a532d08a43. 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/GBSMU8126372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70052e7cbf24ed6c60fbea50dc6167fd78527f31fbf35e585f4b588e50b0d8d5. 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/GBSMU6870663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aec0c7968f0280adb563c452a603874e6baca647d29bc8b205acadf57110811. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBSMU6093962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b65c01ad1a5a655d058b928e2489397762da87bb4de1cb82db6a78cd08e533c. 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/GBSMU5082657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb0cb88fcb8b7a4d3e22b486a4674d54eabaf2f1fdca97f499c7a07b2afbf2e. 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/GBSMU4699609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b050dbff55d25761a5cee8ed551b2829db5bd0980b79b75988e679dc843dbe. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBSMU4387136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9412063f522fc90e3e6892bbdbe4ebc098f0cdbb3509c5f4141192a76eb27004. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FIWMA1700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dce44af93d6f339467319a4a53bc03045b2d1d663f360d0197b26761f43272d. 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/FIWMA1600058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f707cf1ad7e121d009d09b7680bd7de2a5f2e130a34bfa6e95a09a7eae7254. 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/GBSMU2569846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da71b76f439ba657a40310e9cb9d936292a9107b14b1c28843c6b3e6f6c1029. 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/TCACL1500489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda931bfaca29417a0f38b7ff2f9f9bbc4f5ef7a3cd7f39c767bc073db6e55a5c. 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/GBSMU2320981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38e7f1e9b9fbfb1a400aed2920fdff313c4da5c2dbdb0c211d1d190d2df7224. 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/GBSMU2136706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8cf438c1541bb56b0852410df93990260b441023673c9d761b2f6ed78f5024. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSMU2052453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85884b570cc5329ad8328613c54cbd723ee3ddcf039ae59ed94dc1c8f08ce54e. 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/GBSMU2006008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bd11beb2b454cef1113f0fffe112e5fca3d7d3e543a17a8f9feb60c4ecdafd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSMU2086293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db962454f40a2b88aeb72837cdd514e57f94586d9acf3108f5e34d4623ef75a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBSMU1835408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45cf3469f9feb1a6c7888924984e776978c745cbde0d56ec3dd90fb70542ca3. 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/GBSMU1819857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb5bb91488877cc6354d83e6085270ccf946a5b222c73759cbd809a60b81593. 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/GBSMU1743317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f56feb4fbd91f185fde19528c006af39e0a329dc5593ac5587af19b42a7f589. 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/GBSMU1779659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb1ebde51f1c6d5cdd894b39bc035c10c9b30a933d88cbd3dcc2d82a0a8361e. 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/USHM81422012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8562134c34dff9cd5b8eb1c82a31a51558cc4cc2fcf045ee36ea38a3b7c3b6. 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/GBSMU1746704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f207c8408e504d4a90cfbb668de51f2d4a3f98e1f3e24db6ad0e47fee30cac. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GB2LD0901666.