Justan may refer to: Justan I ibn Marzuban I, the Sallarid ruler of Azerbaijan Justan III, the sixth king of the Justanid dynasty Justann Crawford (born 1973), retired indigenous Australian Olympic b
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 0xbaad0ae8a8fe057ed505e07aade4fd75957e2e176f0320306108618465d3f35d. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/494d54d5-2d0c-4718-bd1b-cc0513c004d1.json and https://artists.proofprofile.net/proofs/artist/494d54d5-2d0c-4718-bd1b-cc0513c004d1.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 0x1a29ffc36dddbbf0653fb1cdc55017d45fde0f7922b924202a8f8c3c9accf9cc. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBKQU1704724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd9bf14b9b09ab1b20f7721f00a1d1af5ba950602469eff69b0ddb5cc605f88. 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/RUB521205501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a3025a1cfd7ba4858e204c8516ba12f6ddb44e88d3f7eaa05a7887e2acf9f4. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/RUB521205615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04d0865e601e3ee0c9de6d53913dea72775e8fb5ec5ca7376d006defa7fdfd3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/RUB521205077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888d67a6c37f79a567b7def1dfafea899d352104cfe78f16f310343d4e26b937. 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/RUB521205633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81a21f7f8752dc7e6ed561f6ac8d9b857f2bf31d41c4fd208fa315838bbd4ca. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/RUB521205499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0343560bb5f3f019562b522a4567e0d55c1cd2305bb965172f22954c05b3aa0. 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/RUB521205076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88827cba91372b8be5c1d76eeca24bcbaac2553bbcfb2ca2ae5b0c9f22a984f7. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/RUB521204394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cc05c616f98e57ebf87e79347f78f460ca29c49697a074ecb037d3d541d24a. 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/RUB521204605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0fe49d028a3c42f506fc2c33f5012a34faf8b3f0478a088a60596b5da808ba. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/RUB521205500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bb76e4a5376a01cd5b219a8a63aaabd96719aa90165899a831eaa90dd1f131. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/RUB521205498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5e580b472369d4f9800f0ad61baeefc497646b1bfba085a3934f4dcfc24a41. 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/RUB521205215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35110b3bbe195fa4358845f9d36437d167651af499ac8fcd8ce68971df8ecf8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/RUB521204606.
We Gotta Make It Count - Vicent Ballester Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca3f19c9bf0d3a2bdd1f5d0e6a0a184225260c715fe60e1d47af499bda5e9ee. 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/RUB521204395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94819e8957f592ce68973e7fb919fd565c5443fc2279fbe96656977d91a97c4. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/RUB521204345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a02949e95f868a42a7fcd73a85085a235fbfcdfd66d72e3e63b6c3221273ed. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QMSNZ1509447.
Freak Me Out feat. Benoby - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb63d0917c1f3f90064c579c52156ee84469692d23b4edce86cf5a7ee59e63f2. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QMSNZ1509451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d60a53240d3ae6ab137e417d8c569d30196fb72b55cabce6ad605e83b2cf4bd. 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/RUB521204348.
Best Of 5 Years Of Disco Balls Records, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f231f57fd84418fe1dccbe8a983f0792fe467552fda7f1904b72d419e664df. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1630628.
Best Of 5 Years Of Disco Balls Records, Pt. 2