Thema may refer to: Music Thema, a composition for bass saxophone & computer-generated tape by Horacio Vaggione Thema (Omaggio a Joyce), an electroacoustic composition by Luciano Berio Thema (rapp
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 0x4ba054ce05449e977d08f12c63b2394e062cb4e8e21927b5c69f24cc43ab5bf2. 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/142cd108-f92b-440d-96bf-ffcd5be3efc9.json and https://artists.proofprofile.net/proofs/artist/142cd108-f92b-440d-96bf-ffcd5be3efc9.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 0xf1e932a0e434bf97063564d02f8fbd36080849e95825def7c661a3b036cb0d06. 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/QZHN42148804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbaf50199e7bb12995eb28d0095d558eb97162152fa8953ca7c70219567e37c. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/ITVKL2100337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7415c736d5ece9953955413c6164e38cedc30b08c9df71168b7c7346e2191878. Chain 2 (Bitcoin): anchored in block 958676 (2026-07-19T05:43:13Z), 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/QZPLS2175396.
I LOVE THESE SONG secondo capitolo (Acoustic Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251f423fe00181e0ff423381c6b8920c3cac88ae6a562c12fe95f462907218e8. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/QZK6M2311304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb37d6f085409a1343a49aeadf1b69503f4c30e2d281de97504b95321de981d. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZK6M2311306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67434e4f40518a4943f6b659cc3faeb371357860b7b30f3ac5ea23325cca5c65. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:32:51Z), 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/QZK6M2311308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845f0e882f807afb8bcff9581f708abe2a349d8245016ce094906bca10664921. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZK6M2311310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdca37ecb58c44c4aac21be24b0ee95d88185ffb5887028ab1a4c2aee6cf828e. 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/QZK6M2311311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f0b2cc72a65d383ef3b1c1a8afbcb1730d731c79582d8fe5388c48f535cf75. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZK6M2311313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3136797a710a3f7d8cbf3621606ed07d458b46d3d9cc1517b7552d0b2da2fdc. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:24:55Z), 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/QZK6M2311314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d61ef39a064d6a1a5eeb97dae89df13245c0b9e2839c0c93934b929b1d2d3a. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZK6M2311316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13867b85ebdfa71079b77c12c41e175d848d5ff7fcba133b81ef0b258b899cd6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZMER2317232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68d271cd974cebede674b9965c60543b516599726dc9fb6eb734a40ea9b256d. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:48:12Z), 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/QZMER2317233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e0d414e8375d1dd924df4848e0c2984921ef0e531e9a950c9d1992c3eeefb8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZMER2317234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bce17b76c76780eb57a4857eb988392c936e06e4b7bc4841fdcbabe1150eb7. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZNWT2312096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa511eee85af3254e943d28e8453e19c618a12cb92df3091741180ef373c094c3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:51:31Z), 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/QZNWW2319982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30619846125faee00d1927e92e648ecbea60c140a841d9140369b08c5b873d49. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNWW2319981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f82c393483991c2b04e5aaf21892f0311a119b642808db36356e9412cb0363. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:40:33Z), 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/QZTB32391819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f522311bd69e43e1871710b69fe81566d1320fd64ae4794edceaffd5497761. 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/QZTB32391820.
Niente canzoni d'amore - Neapolitan Acoustic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb139055e94a6942795a7e1ddce3c463fa554cb25b88eda50ec5254a2845dbc46. 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/QZTB32391821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498c591174956ad83c5fd67cee02fe05d936106888bb49cc61e1567a00310693. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZTB32391823.
TheMa cover session N (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5e7d677734579f715d00e402d805caace6ee28c5a5b7f9ce69debdead20bee. 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/QZTB52398372.
TheMa Cover session 3.2 (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643c7e083e8570f5bbb0b1e6fa0add1c2043f842d797a8f9d14883974afde58d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZTBE2325619.
La fine di una storia - Acoustic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5535a2b495dbb1a393cc72c9b73f9b6969fc5d45a7ec81c059ad4a4b3c286827. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZTBE2325620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb36db2c6d0d240907164064af3d20813191bfab537929da36599d2f1f9bcde5. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZFYZ2448083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d0fea200328581f5c1737f1666fd6f1e88351fb3c3467e78f5e3f2eaeb56fe. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZDA52493364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd35380c7007a07145a0dafc2c2c78885085293acac4a1471740a57aded6934a. 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/QZDA52493365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac1c901f6358e4b643037c9a64dcd6adc582095a8e25ffd10ad84dbe60e5397. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZDA72472032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb602386645bae7095159723c8f4be239255d55a3873e9bf3f0e4aa49e6c59f9. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QZHN32458763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c874fbb2e7e9b7ff51a5d3abcb77db57dd126952e6aff1e0e3a4d5a9d11813. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZK6P2479479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d4de39af94cb0ecf730e0fb8b9c21addd6a8bc7ac13a8ce637aaa40d376f46. 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/QZMER2474879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d9faa065956eca8542f1ea65bcb2c4eb42d1b0e2c530b2235ba3acb5a4f744. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/QZNWZ2404802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b934924e45f303d5197bc8b8226eec2a36d68cef7e0a54b8f15e72d4fed861. 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/QZRP52409996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef344811397325c41d146b40b1bb47b34e979bf837bfdc02fb1a475299b417c. 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/QZTAT2476195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804a4577f03dc421407ab5de22853df1159be162d6cfb701f162c25b030dad95. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ITMF12300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69db5ab49fdfb052a775eaf6ce12d114bbc6b02a7c378c043ca7bb01cd8c348. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/FR10S2541840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf02c761e33f98e6a68d9d263eb66bae75e1d80ab176d26a3df5699f39aacd1. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:10:51Z), 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/QZPLR2538451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145b2e8e8ce6e64ecf554f2256c97661173921de5a455d53a01bb29a8c98ab9c. 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/QZPLR2538452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9ef2b66375a4debee6cc1b12adfdd019c135492cc22f53432c0af9da71a5fb. 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/QZPLR2538453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c9e84a2f5043abed20125f2e3d19c8313928f3a163616ec9c89cdeeebadc4b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTBA2541173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcc9cf8e48935b14eb021f1add446544fa8ed8f69edfcb4dfab7862f7e936ed. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:31:56Z), 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/QZWFP2597794.