JTM may refer to: Jordan Transverse Mercator, a grid system Jornal Tribuna de Macau, a Portuguese newspaper in Macau Marshall JTM45, a guitar amplifier Jasons Travel Media, a New Zealand website
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 0x207394b06c4c75ac0d4b20b241d282fef55439a9487bec0388597d19275921c5. 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/4fde40ad-0b8d-4b32-bbe4-0c5ff1a63d13.json and https://artists.proofprofile.net/proofs/artist/4fde40ad-0b8d-4b32-bbe4-0c5ff1a63d13.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Found a Friend (feat. Junior Maile & the Genesis Choir)
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 0x21f5f136e42093e2bf45fc392d4ac7c2fc2cca5e39fffdc61a7117d64d91ff90. 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/TCACQ1660610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04dbbb4ecb9cd8e3f381499675bd3f3e0548c7c777e818eabcb6ce53716f4d13. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCACQ1660611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ac56d96fe11c5e86f26d98e9ee285f44ce7a857328a046cda52dc1d75e5342. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/TCACQ1660613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf745df21d29aa398859669f7ab1a134208bdbc1b64fa56f8f8a5b11a4526f85d. 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/TCACQ1660617.
Motivation (feat. Jay Warren, Junior Maile & Sione Toki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d1afe0017377f777b7c3a3eacf191d1b07278b7b990852720597d01d75d98f. 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/TCACN1650535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14580ce80b460d44b2c54e96373acee75aa68edcedb8f4674c834a470e8a592. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:07:52Z), 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/TCACN1650540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7250b04d570564c50065fc548b69945d17061f1f4664cb5e7d1e9d9d56bbc26c. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:48:51Z), 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/TCACN1650541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7427672997e8516d26fce5db0cd3185f338929be69e531f1738eacf32b28742. 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/TCACN1650545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74cccdb8e9af80b8ec7416ee87bd128fdcedb3d487071a79327c0f1f8d26ca2. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T08:13:46Z), 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/TCACO1642399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7156ce250ea411faa8624098fe5de7a2320eea1b501c51ddefe5e4975f76b7. 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/TCACR1654355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c93786c33ae32451f8f3b07a1a1b9aa356738ad51cc41e350c7e52596dc725b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCACZ1759100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0a7103330c956fea860d878ffc8bdd3743e52838bce06b6a75c7c73d48b8d2. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/TCADC1761808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624879a2f1f6c60ef5626ee18b51dcf77e7874364d7953a0f9ac9e40db66a373. 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/TCADO1860703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25469cef057c17d30d01ad9139d3ed6effe0aa76e2365345cc55c9b971e80bf4. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:55:25Z), 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/TCADO1860718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa374cea314b1335b901d9484754f79fd436a7f2019acef36e62323c381fb19e1. 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/QZAPG1843235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1e536889b2b910bed86ada7c84559baa5d5bdfc1f8560d140cf88f57ed57fc. 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/FR59R1887077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b73005399f767c940a308ab079d1589c5977632ea7d7a2f12e3aeb9232f8d6. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCADD1766994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c93786c33ae32451f8f3b07a1a1b9aa356738ad51cc41e350c7e52596dc725b. 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/TCACZ1759100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8705787a2d75f62a3da80f1d32764b1c34da6349fc5f0f175b95cf8e84406aa3. 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/TCAEJ1962836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914f56c59d3f1b84b0dde0412f835b57e2beccd19be22831fbdabad025fd4859. 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/QZ9452000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e059fe9f5aceb33e8026ca1a10cf89436b3209df16cd5ae269417309ab40cef. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCAIA2480354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb792b2dd063f120b9e199080bf31112222d4e542d2f90986e8ad6d52754815. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/TCAIR2494853.