env is a shell command that either reports environment variables or runs a command in a subprocess with modified environment variables. The command is provided in a Unix-like system. By default, a su
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 0xc3876cf3aaa8d988b0b9c0889bb4422e6b139d597e440f462eaf082e58998fb5. 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/879af73d-dea0-4ca6-ade1-3addd811a5d6.json and https://artists.proofprofile.net/proofs/artist/879af73d-dea0-4ca6-ade1-3addd811a5d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Electronic Super Joy, Pts. 1 & 2 (Original 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 0xa667dcedae7cc2faa594c93f6a206a2134617c67fa206405024873e52a1739be. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USHM91363404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a74c3512d3cdbf577998c0d2eb0aeee2545ad47d4cb370fa07fa9ff3ce2dfb7. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/USHM91363416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18c622b14124734c85a365e57a5ccb56d1c971b75d9afc453b18487c20b8907. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USHM91363417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352cfd9e3e7fb4de2fc786006dbad6632a9b2997a042e8fae58f318d78cce979. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/USHM91363405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d575aac04e40de22ce7b301d8668cff80c8c443ad5778cc71f76b6ceb0c2ce. 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/USHM91363406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be594f67c9f498dcfe570baf6f42bdf39406b7bf6e1b5dd82bdef6b05378c37. 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/USHM91363407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828650f3afe6276c122f91d6f0a077540a2f742eecf6193845f8586c3b74adf5. 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/USHM91363419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6adc88e9db5e89e1d2d64c1b1fa732a4f4786a4fb980ee8d416a9d4ca4d800fc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM91363420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f83e09b2f3d5cc62e56fc103b562762e21224b4acd2cda0e01f6cfdf060655e. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USHM91363409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071ee142ff74a8ded95207e5844bbb419e5772cdaa7c4d3b5a167e5731d06270. 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/USHM91363423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3aeffeaaceed76934df792c9357e2c9eb5f20259de54930b44e85cea2baa93. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/USHM91363412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520c4c4a642b6388293cf8f89adb0a4d5ec72d80a0d0fe388306c683622819f7. 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/USHM91363424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa26ac9b56d3e27e4ec69f27d1082d7a26ed8b2ebcd9c7fef05c11719c6cb59. 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/USHM91363413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925e24e12807e55ae3060d718bf7c62182991f8d0521a40d5e7dd0bb67663b4f. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/USHM91363414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5727a0aa6bd674e43a9e005f7cfd9781cc7a8644f5deb1ed7ed028cbcc7bf1. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USHM91363415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7314de44988c912c538c0488603a78d0309a81b30e62010548efecb8c0a456eb. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USHM21492585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac76506a707467b18a46663c28cd1932f6e6c90b6649db869ac4f24795451109. 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/GBKQU1463961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b66d869b3bd4eba875becd4a347c0a1f6d3ba9b9c2c75f4a041374d06257203. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USDY41516845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113aa648e27ecf7bf8cc3973bda0b28c0cc6a1602c51d4ce9d855cdbb7d3dc29. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USDY41516847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc6278ffbbe068aef167fe610ab8ead1e23c5cec575ed2e8245c129ada6f896. 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/GBKQU1638447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94a433c6c1d77d440a04995e51504e5d62d4579dc17b53521d4e45f15efb3a7. 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/QM42K1867307.
Electronic Super Joy 2, Pt. 1 & 2 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084e20bd0e68a0e0e6fbca6cee03eacb7d5321e59aaaa71aedaf8b671fd4bc30. 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/USHM91901541.