T9 may refer to: Military M4 cannon, the 37 mm Automatic Gun, known as the T9 during development M22 Locust, an airborne light tank, known as the T9 during development German torpedo boat T9 Peop
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 0x59b32bc99c9cb0d3d4644eaa1fd3777671d2ae66dd6b561b79e351cd308e1e28. 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/20d1c015-337a-4d47-8158-c1fba6716abb.json and https://artists.proofprofile.net/proofs/artist/20d1c015-337a-4d47-8158-c1fba6716abb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Die verrücktesten Abenteuer des schönsten Mann im Raum
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 0x0c333c89346fcd84f60a89b7f285717334a6b01abcf5d0ccf385bc14248eb9e5. 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/QM4TX2475089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b9ba182dcaf30d3087147561232cf15011c098795407bcd8d7fc8dbcfe8162. 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/QM4TX2475090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a59e9b12b717a16abe09d6514d98fdb53da1e6c075256f32fc75d228fe79ec4. 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/QM4TX2475091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8bf34d737a52394abc41bf66a1e82d9fbc0c4e4dd6df86df89981393fedf3a. 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/QM4TX2475093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4d4eeb1f449583490d38e127d5822338d8dfc4750b426192ffe26ce093f5e6. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:55:57Z), 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/QMFME2350721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37ef745eee2311054eeedab2c0e779f8a2908b3ef8ca582f0669cc9151bffaf. 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/QMFME2350722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40243b20af1137f3ae77de8ce3d710f4f5e8f65369d5959ac357c3143b91504d. 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/QMFME2350725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f11bcd8172d6f5e7b81a4a5e7813b32002d8db048e4fa889b21c87e7250b65. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:01:08Z), 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/DELJ82019221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fb58ba5f6cf9f9e01702b553a7bc2d08c91f92dd5989db01e662d16a9a619d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:05:26Z), 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/DELJ81921682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f829194def5fbc31e9bce41fbc5e5b70d0b9eadad7162d553bedba9ddf9bd4. 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/DELJ81921684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f4492ba94c886f9088d534f761623c6d144d77dba9caad3be167e06480ea7b. 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/DELJ81921687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53117a6273a5729dfa52267052c9c64af35ecc2cb9d17509b614f64db3ec2653. 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/DELJ81921692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa3356c1db05cc4d253135c58fa0c692b62d102cdbcf6404abbb8813243464c. 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/DELJ81755205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75efdc863cbe83f58d8e4a3d50257c1acad9baa7bd30480889d767b3efdc85b1. 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/DELJ81755210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186602ed5046c48891125aad26463ad4808a042d7dc6f865e62cccdab042f56c. 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/DEQ121640893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51eab1667f74eb44a10105e5feda81c59372866d682497f39240ccaa429af027. 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/DEQ121640895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58dbde082a9754eb62f3ad4666946d5f1d108236a4d342ef25a7fa9ceea2388b. 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/DEQ121640897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa147fe5bea1e7d71ebeb4ce986309a64c8b9b760215f54c964706dd56ff94a14. 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/DEQ121640900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c02e343f93707ce6a74ca7549848a659d8ac8cc657a777db0a17df1258179ea. 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/DEQ121533537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a92c4291e5a5de0bef8b40f372b3d42425ba0fb748116f7dd6e319edeeb2a11. 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/DEQ121533539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0818f110040db61a3fbc0f322d38f28886560804860d20b427056a35cf78c22. 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/DEQ121533542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c0caf3a63baf509a37723a853c35b7d38f2d41037a4d4ab8177e7a07f23e9d. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/DEQ121533543.