Critical or Critically may refer to: Critical thinking, analysis of facts to form a judgment Critical, or critical but stable, medical states Critical, or intensive care medicine Critical juncture, a
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cbea2c11965b4765dcc2a37e8696d9b4452d91c70574cf6eb6e38cb82ef7a6. 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/fc6e205c-0b30-49be-9fbc-c6bc18c36f16.json and https://artists.proofprofile.net/proofs/artist/fc6e205c-0b30-49be-9fbc-c6bc18c36f16.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8a5325ef252c189c5617f082cff02d926436407c7cebfcb05663fb74dc08d5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TRUM72100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf166a1fde79199406b7535c1aaf43d363c11227306eb4d68a41312fab2667e9d. 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/FR2X42129701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8a5325ef252c189c5617f082cff02d926436407c7cebfcb05663fb74dc08d5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TRUM72100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d1b7ed9461dbcc440dccfac5eb48f0bd284f03eb26906de56090e8333cf1ae. 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/QZMZ92307984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cac166478c744cf8f32cbcdd28206f982b1e5f9e68bba70576476ac02be2a56. 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/TRUM72200801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b3aa4b2486280c006c1338eab1b77c05ab85b751306d41bf6ecf8935a5cb16. 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/FRX282141975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8a240de9b1ee787493d948e3f931905cd6989f20634deca4d7b4101c51527a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAFO2128626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d8c917045a6d91bdfe738e78dff0deb8119415d20a28c27fbee2f98d9aae59. 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/TRA162100247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8a5325ef252c189c5617f082cff02d926436407c7cebfcb05663fb74dc08d5. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/TRUM72100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf19173da32dcc19a101a597e1821241ea9ca0e87543a6958fa172ea61d1e6d8. 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/TRUM72300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69ccb12cbfcea5a4caa5d894a5808549822b1bfcffcccfe39c4e10e82918cf8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TRUM72400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9311a26ba06999e5671b10870978844c200067055f4f77b752a858d8997058. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TRUM72300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060fcec320706b2031c846d8858a54cada318a5a34c8dfdb301471b1ce468866. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX452325513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb160e476e64d5b8ff089449f1ea05aaaf4e1848cc0b068e946fe90912f7abe1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA0P2350347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757959184ae9cf0ad1a2cbcefd4ebab5f7c44a6d437d334d7d96bc7e8c5a36c8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR26V2040988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8a240de9b1ee787493d948e3f931905cd6989f20634deca4d7b4101c51527a. 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/TCAFO2128626.