Maston is both a surname and a given name. Notable people with the name include: Surname: Carl Maston (1915–1992), American architect June Maston (1928–2004), Australian sprinter Le'Shai Maston (born
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9447c1512a62c35018a5a0009d7a2cf625d0efd20fb4a26e9b745741770be9e2. 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/6ca0b312-99c9-4cc3-919f-0b1018b8add1.json and https://artists.proofprofile.net/proofs/artist/6ca0b312-99c9-4cc3-919f-0b1018b8add1.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72572ef3df03ff2671454c66a7d71b1f364f7dc1d899be2c1f56db5615a1a368. 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/TCADL1807222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda48e6ba6cfe4b3af0de4fc9bf90595e9edbfbe2cc93289061ebd356b43eb618. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCADF1756580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a11d1fa99d77733e2133b90e4d3fff7f1c51c979bd16b470fb9edea73cab07. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAFW2114961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cca142599cea26d5a1457fab998eaf99c3c30a528063b3f163b53fe9ca6976. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAFW2114987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4583e11f72111c451c25b54eedb8759940ed999e73a458aa1071c74567f5c01b. 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/TCAFW2115000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e6a5ecc77cb1c447966940e9cb6091cd2f1580d4c987dc022f33616d6196ea. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAFW2115018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6c7d4291efdd3ce8f2a68a18e8c6708e86de5e9a8211ea6296a5ee411dbbf6. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:10:16Z), 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/GBBGL2100900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e65e5959ea10a47a51818dab88c8935cf249bd51fc5a41643dc0adce6e47268. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBBGL2100901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4778f6c1d1a4ffe6e6555199e45d21072c6e402cec207106711ce4f777c7d19. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBBGL2100904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444d4f95f171f409f04662219dac4446cee2b290e27642bb328eb2647deee9b6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBBGL2100910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1588b9975d1f4b5e9bd8cc5488a23a9c6b768c17c0c965d87cb1759b4a8ac43. 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/USD8D2103001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc5395231a76065ab97da358b5588f025de4f36019d4eb5655d83fd4a15c45d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USD8D2103002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29f732c74c9dd5f8988760822713d483d606b16e306e4d7fb7825daf5111264. 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/USD8D2103003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17de7c60e39ac942d26b4d5752161488287be36b5d7b6c38275132c47da57ff8. 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/USD8D2103004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ed23cfeb578207cd55adfc3261671a05ac9863bd4987e16e270bc4719f9438. 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/USD8D2103005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64ac3b53d6d641d1c55317a54070bef2c4110fd415c35bb7e6e37fe895aa36b. 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/USD8D2103006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864bbb1874a5dd08e1d9242da9092e828f6edfeb49d10135266f8a57aa0d337f. 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/USD8D2103007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde723b2d11d12474fbf7d9ac90d06be9281531206cd750b16834b3788f093ebd. 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/USD8D2103008.
L'Ultima Cena (Music from the Exhibition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f04f0351154e4614776934aaa0ca230c795b349acaa073f15b8753f3be1eb03. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/TCAGD2234310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890e58ba3694436b535877c5156fd726e9063e26a13257598a5ea0900189d515. 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/AUTZK2200012.