Virgo may refer to: Arts and entertainment Virgo (film), a 1970 Egyptian film Virgo (character), several Marvel Comics characters Virgo Asmita, a character in the manga Saint Seiya: The Lost Canva
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 0x37dc8d4907b353c86935f42a9815cbd05fccca092b119354d6c817e8cfeda5a3. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b68bcd9a-5420-4f27-8ddc-94e0ad913ee8.json and https://artists.proofprofile.net/proofs/artist/b68bcd9a-5420-4f27-8ddc-94e0ad913ee8.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 0xafaf8c80c00924b671d1333471a86f03fc1b5dc1fc29f72c00787b5aa3528a20. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/CH6542528325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba7cfaca7e4e76e583eb33ecdaceb96188307d1e7fc0ef597e7f35d87e1573d. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/CH6542528327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e00a97fbcea9b6b15495827cf4b8e7107da2b0c884474409d469af3fa3a2379. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/CH6542528326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04d41a82e129d7061ab9ccbe9a049f78e5af0bf5b3433b3dabda9852c499a7e. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/CH6542528323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132489226ef57545717bd9af861d7568a9f0cc365b766a297bd97838e2857d14. 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/CH6542528324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c080380e1d2e5478d2af3573fdc6b40f2a1ce2760496146365b558a4f30ff02. 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/CH6542528331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9a5cc81a45cc4e8983b3ffd59f221848f65841d76dbb3109ea6f56ac3ad7b1. 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/CH6542528330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5fd39ec2c2a9bc37fe0926faa4fedd4cf4baadce34d90890f40fb1103ce235. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/CH6542528329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7ed1d76b2d57d07ef84884f751c9defd95e040bcfe74dd886e1896866a6d4e. 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/CH6542528328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2872a4e87df760b506387c57844309ef8ef879cbd62ccea2a0e8389d280d4e3. 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/CH6542528332.