Astro may refer to: Entertainment and media Astro (South Korean band), a South Korean boy band Astro (UB40) (born Terence Wilson) (1957–2021), rapper and member of the British reggae band UB40 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 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 0xb982c08cf0ad6563ae1fe664528230622a3b0e1569fc9a442b26f37e8c034d4c. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40326882-31b2-48b6-a77d-764896a1982c.json and https://artists.proofprofile.net/proofs/artist/40326882-31b2-48b6-a77d-764896a1982c.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 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 0xcf983b11ca7349e06de4d5a284dca3751bdc67a5974c1d155e3575f50870c0e4. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZPLR2102045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a34b9799cf236c06111a21b9260bdaab5afd8f6aeb8c6977545c0e533a9b346. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZDA52311531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aeac794f6cf9953f6bac40b99649cca670d53e0b87c8b6ad9f0c5654ab4987a. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZK6L2330426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857ea00931aec3a647877692e0e42454ed29c0afa44c83219280df3c99478153. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZNWZ2399333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b36899dc0e196ace38e115e2a5ee66e1ae93ac347b97438e3ecef78e872b9c. 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/QZWFK2357494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fc7201242b555397f5c63898087c9cc9950c6df7512fb959d44f79754b5537. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZES62402654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f75d48f2a1163923b4412d5e9f2b9f9b625b53ed2109167c511c32983a7d7e8. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USUYG1571814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c90b6bd58c04fccb0c4606ee1e33446aeaf8678f8eb470d5867586d0ae148e. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/USUYG1579589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686b1c58210dc863013ada70cc5f88e50905892954e2bf1f870501631fc56f6d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USUYG1579591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39d39206a558ce46e2546a71f81a59faa4703c80542e2f8880c06fd8025f1a4. 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/USUYG1590865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64a0708170081be17c7d13b0a816752e2fe6a4a69ef1f5fc35d3aa71d4cf580. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QT3F22437722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12843e620a043fc9da37c50214c14f179ced8a0134568c4090286b58bb9a8242. 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/USUYG1599262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be1b082eeed11596cc6764502690531454d3a7ca2f3329f06aead28ea99ac8d. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USUYG1708067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b94d1bab18379619ca85dab7a9c41fc192a33f6fafbd51451a6b3fdac5a673. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USUYG1717914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027a5e94b83393a318e25a388143b5df7767230a8d8c091d413b609caa51c603. 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/USUYG1724436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16741e4ee10aa1a2987d5b3b8e73c5c578a3595961dde113c7a149533b89262. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USUYG1730302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb450843e278770093ce1e267d452eff0bbc027ffbe6674d1ba764aa9dc6ad646. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USUYG1748077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1af2acf88f6d3ff038886c6627c35edd21080219d70113b7bd253fe96a8972d. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/USUYG1746925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f22b72aad505168af7635174716d2c5ee0cb50ebfed4d54c34bbb5a63d19731. 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/USUYG1756608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70c510e29a1e4033129cc8302f6990621243c166cade2202594bcb140158224. 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/USUYG1756616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19001707e3424f7fcffe6a3220d5905905285dcaeee7cb1d8a240fd7e610060. 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/USUYG1756617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746f96b4a02890d6a92acf8363ec2f2c2f01ea6eee04ff2bd528a4c97f789439. 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/USUYG1756613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd05400a70b38fcec5a120202482b50ec6ef679f8dce695af23490169009d726. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/USUYG1756610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb50dbb340a2081b2e424b3b8fedc147f8f749973255f2ecc3d47666c8ff0c1b. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/USUYG1756611.