Tenma, known as ASTRO-B before launch, was a Japanese X-ray astronomy satellite developed by the Institute of Space and Astronautical Science. It was launched on 20 February 1983, using a M-3S rocket
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 0x81c33cf4db9044378683ea2c6bdc3765cb703f25107766d0a5b028dd6460f24b. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a295e9c9-a736-4b54-9ac9-d228d553079b.json and https://artists.proofprofile.net/proofs/artist/a295e9c9-a736-4b54-9ac9-d228d553079b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Natchathiram Nagargirathu (Original Motion Picture Soundtrack)
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 0xb6af7114483f98ec996f81df222af88b23f9e2e35303ed255c96f0351a18350e. 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/INT202203149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96dfefad5a0cce396cf626b462cdd50cc36f26de1ebb999fd8c2425d8dfef37e. 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/INT202203150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0639bebc83f1789f2a304ef427b30756b512dc8875a84f0f2fbc285d1948d9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/INT202203151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f323bd5eb6279ad052d57bf8012829615dc6ebacc98f738d3d053afaff10d4. 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/INT202203152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e76d05bf761521705b0a1535e523527be15db7d4cfe521a9164b4d29dcc24a6. 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/INT202203153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d9a3966ec78c0b492e03cb6f9bcb9e7a0233c482f902765d0df545125e3277. 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/INT202203154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8493aba518755e64e9e9eb7d83295d1be2535366b24a684f2f7fa8af3c2e6eb1. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/INT202203155.
Irandam Ulagaporin Kadaisi Gundu (Original Background Score)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66aff57f03eda7db27783f12e0e53edcb25f58c37cae8643dbb00bb3c208a5b3. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/DGA082445081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88da32d476f800dba2011f6ed4f63aadfbd8ca1d9f705904752ca4122871750a. 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/DGA082445083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2eb33ed5668f1f39c865b8293a8b7eaade92c25aa0198312d38c8b02767b9ea. 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/DGA082445084.
Kanal (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4851b01c73b2a4a3eaab9ac9d93bc9df2a38e1c1ee661f0193487f6023b3847c. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/IND292211069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9174b3989d58d17f81ca91c61cdeb6a00d51ca27f45aab8fa224b025dc30b69c. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/IND292211070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5ddfc68055f45cf5d6e27a703d18c4591c8c6852047b3cb81570ee778b7c30. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/IND292211071.
The Stars Of Natchathiram Nagargiradhu (From "Natchathiram Nagargiradhu")
Pothanur Thabal Nilayam (Original Motion Picture Soundtrack)
Kani Nee (From "Pothanur Thabal Nilayam")
Pothanur Thabal Nilayam (From "Pothanur Thabal Nilayam")
Schumy Vanna Kaviyangal (SVK Bodcast Season 5 Title Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e72e2b71de4c4a9a65af37c9dca8aae078d8e519e97d1457d7c4af4b3d8a2d. 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/FRX282056107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101c7d928ab8d8b9223380c139e80e10a1bef482f95e0d4e55c72c18822be906. 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/FR96X2094239.
Irandam Ulagaporin Kadaisi Gundu (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23014d3b5613e569e6c503b2033560eca552dc8f2160d3d71a5916b785c8a9de. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/INT201902102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9121db7a9b2c42b0b5e45837ae6128472aa03c2355b49d6c69023a1636901a40. 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/INT201902103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4a8d79b7af3e56f40841ec69984675f4febc2a88273e3ab9f7c3362d26caa2. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/INT201902105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cffe16a5623123aca9f7d147c789dbbdec7e831f0a862860b16ce5f0d3a5b20. 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/INT201902106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5dffeea5954c48f3f7398c5d9ff12a5e3571ab34bab7222e499e0a816c5cb3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/INT201902107.
Maavuliyo Maavuli (From "Irandam Ulagaporin Kadaisi Gundu")
Maavuliyo Maavuli - From "Irandam Ulagaporin Kadaisi Gundu"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23014d3b5613e569e6c503b2033560eca552dc8f2160d3d71a5916b785c8a9de. 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/INT201902102.
Nilamellam (From "Irandam Ulagaporin Kadaisi Gundu")
Nilamellam - From "Irandam Ulagaporin Kadaisi Gundu"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9121db7a9b2c42b0b5e45837ae6128472aa03c2355b49d6c69023a1636901a40. 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/INT201902103.