Don, don or DON and variants may refer to: Titles and roles Don (honorific), a Spanish, Portuguese, and Italian title of respect, often used for noblemen or distinguished individuals Don (academia),
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 0x3d46425132c89efc2e3bf7006b869f983b12ba68adc7d11f2f7007a0f26fe0cb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/63fe7020-bcc3-4874-9e96-d2b22bde38c8.json and https://artists.proofprofile.net/proofs/artist/63fe7020-bcc3-4874-9e96-d2b22bde38c8.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 0x9c18ef89189159f92d859916b15adfcc0d3659b98df5bbf5eecf8644d9db8464. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/BKGFL2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094c09b01df22b0bd908e705cc33b45dcde4c92ddb4b9b4914bf21d57a9094f9. 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/BKGFL2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1d0195f0873bf39fcf32d702dc7e3a77af7308430d4ac32ba3434990998a0e. 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/BKGFL2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3062946aa3f70a43b15f6e5d13a11757cdbcec47525ef6fb1b50ae01931d809. 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/DGA0P2357877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee663d1c743bf953dd94241e80e0e2bf672a3d490cf852d6ecc04546c76dbd3. 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/BCJVY2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35515686e1d5ad1e386c23ec74544802fdde5cbdb2567763a01a7173eaade3b7. 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/BXO4Y2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7f00cd27861bb11d80133689daad31072e6011886978e1ddb226013400ba63. 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/QZMZ92023179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb58ce0c2814cd658326ab4f5e2ac98a24e0ce25b1cb72e80c349b5270ddc652. 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/QZHZ41944385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d850226afad174b63b3fd140a06aeb412b31aa76a522f7ffafec5a89330ad4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXTHX1900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83aa16921138282a1fca4c6836baa16190be688023fb5ee23c121fbf93f9cf70. 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/US7VG1948016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082430f35665c0c8429217e39c49ffe816d783f6737721e90805dd47cceb38b5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BXSSW2200666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670b2d84106a4cb1434a8b822c154566ebe7ae24e29f7da314e2cfe61522683e. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:35:42Z), 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/BXSSW2200670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc1de2b7272186fd894b783779deea96a72d3b75ab21250bee0e2701e7e85cf. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BXSSW2200671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506db467221b4d4b55dbb707dccde8313aaff4d1725a4a84523a9d5c8517432e. 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/BXSSW2200679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecbc83939369cb2fe10d5fc4eca95e1c1ee9c955f2981cd0b9b2fe204ddd339. 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/BCJVY2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6a2b96d429602aa5337fcf6a83c65c3b4044bc3c78f9d13c64dccdaf209a42. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCJVY2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd9a4d2c4f6168b38120f8d28d6598b83f2e7605d690ac78240051d0000b5fe. 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/BCJVY2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5f2d5f74b8d6fabb3d6b3f19432a2da10a38b5aaa0003cb798ccbe12f0682f. 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/BCJVY2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d4cf2c3e8c1f01bf124c95dacd23c4eb7308d121acbfea57a9557479d87c9a. 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/BCJVY2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439dd6972b6b9776ed89144badfc82efd7bf433cd65063894bfde76c84f606fb. 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/BCJVY2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6268468daeb869bf2c0eb2c61da70e4532d041b940476ff82958a5cecb6c927. 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/BCJVY2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b73f2bc2b5e3a7947b0981f96c8745ec56731b91b751f500b62b881b512ceff. 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/BCJVY2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3296669cbc2b75193c688cfd3a00a2a7380343d7bbb21291391cd50e0d6379. 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/BCJVY2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c910997f8f5f375aac24e919961800d7d7e0769fdab4887526b6b8d31e3ac0. 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/BCJVY2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8de6873b1412a74b85ce33b6a1e77fab8bca93e6aebdfb481bde142cf5361f. 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/BCJVY2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1a706817756d69d35ee40267ed6134245a7f67301c8b88dcbee42133e6a135. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCJVY2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaded2ea1926785dae00be9a26a38149cd30dc77ccc9f39b6418f1352001c2ea6. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BCJVY2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78b2e843c9fad789f2cac06fa0f9527bee8e0bef7ec8cbf7e9b6790333a8575. 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/QZHN72281528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f640594a4cf55c27d78bc13d855eb1a475ddb25de479810a4fe8d7d9fa0b81. 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/BCJVY2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5010973aade6878b082f0cbf4e9bf8791a3a51ef96064c8f85a4bcc3654d01fb. 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/BCJVY2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41abc95f320f1e6dfef638cf451f9119c01ea6954a18da16ba928492a900988b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCJVY2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2ad9d5b426ac19386d2eeb9843e42d017432612607fb7918d53d2259c127f3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCJVY2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7270617910678c8b2893bcae63235b4425bc0b982d9c244db9dcd118a12c6d9f. 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/BCJVY2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928900a67854002d76df8f19751668ec244c0328ad36298cf329de4bf92098d7. 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/BCJVY2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea9debb194818964f1164caa20f7e74cf22b6a8a9be6b7150600450eb831350. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCJVY2100018.