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 0xac9fd572cd70654069e7f24f74c400c11e2afbea5919ce6e75167c53227ffc44. 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/e20ea651-333d-4ed4-b722-d01836d62f85.json and https://artists.proofprofile.net/proofs/artist/e20ea651-333d-4ed4-b722-d01836d62f85.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 0xc594610ad00775f092669089f7aad84f079e98773707389f40beeef4ddca6901. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/CLFW21500183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1e06e3b590817f192110956d4a15c2ba1114c7b9689b6e4a8b6dea1d2c353a. 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/CLFW21500184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93029a9102bcae28f3232f8c5baf8856b377ed65bff0189804cfa9b91a8049ad. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/CLFW21500185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097ca1e3e191cafc741c6cecc072be080de7924e1612dbe7b02985f0e9b077a5. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/CLFW21500186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29ee732a0be1464c55fff8f3c64e7eb15db51f1f3a949c95e849cdd88e07a36. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/CLFW21500187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371ca73e2c7d70b6d8a96804818f0c1239f26f0621ca98dfb13b61662c8bce0c. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/CLFW21500188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38553066b13055a966717bc61839cd4f5f39096f9c56013a713238a5757a32c4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CLFW21500193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfbf134db017b37c700fd8c680a5fc7f312dc006cd4516dff3ea74da42a92ae. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/CLFW21500195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660e10a3aabb453a59749ec338e90f59f4c09fe229a4c82d28dd9064938876e0. 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/CLFW21500197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22c2a236ecc58e082399a0ea2fcb9f78e6e4b8ba967fd65b99ba0b4e3b6f468. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/CLFW21500198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fef1ae0145174002614e041a4bb3c9b937689a821188f466f3f91381c94d95a. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/CLFW21500199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2ef30d0e45db599a3b68f5939fb3c33a0870eccabb5df32735b0c5827946ad. 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/CLFW21500202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f4d1e91570f30ce1d958837e386bba049b2c920c54e04f8ee714b438298c6a. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/CLAB20801824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f39b55a094541339559e5e8264570613fb5c14d5dfddf0efd36651b33175fff. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/CLAB20801826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf360b082e2276a611bb693e10235583fa14b74b042bda5745d9a46c94d7ba1ef. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/CLFW21500204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4504430eff556d12824ddde5e99b712170e054408b611019d8a689b9f51da47. 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/CLFW21500205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d133093cc3204fc83e683f59b1f032ae70ecddc53b6b2e93d65afb1b7803517. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/CLFW21500207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc43b4389b14c16abeba8b5d31284a044b8da5ab7bde498127e388439843e779. 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/CLFW21500208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb839af5ab980ccdcab0b9fafb0fc1c75e1f058318331fbde6dd81c47463fa5b7. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/CLFW21500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486e29391cbc027648f5aca37ffbf99c88a01c991dbf03e439c18cd24086cff2. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/CLFW21500210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3ec40879348c78a011b9ca5eb08ce40bbc73ae832768ebfcb4b21ded85cd53. 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/KZA0T2505474.