Zircon () is a mineral belonging to the group of nesosilicates and is a source of the metal zirconium. Its chemical name is zirconium(IV) silicate, and its corresponding chemical formula is ZrSiO4. An
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 0xc486ab946ef074f10c4e36effb19153c2208c8892c7957ad6f5cb778d4723788. 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/7b4b3087-d409-463e-a86b-9c3cc7095224.json and https://artists.proofprofile.net/proofs/artist/7b4b3087-d409-463e-a86b-9c3cc7095224.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 0xd77fd40fe8e59e3e027271010a46994251a284241e06a0cdc74903e2959ccb51. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:24:53Z), 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/USY280770899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac2205b6f34df0ad3ef576a00d76a41476129e167acafc5b84d7219219c242f. 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/USY280770901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c151040e0fdfaa66d4e8fb5ea34f765596504b8d9ca49d087463c2f6738b486. 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/USCGJ0797295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630f8d71c0f3d5efa3efbc095ff015328a0987700e17cf7e18b3bc963c2bc67a. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/USCGJ0797296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f54ff7b46262f03f3bd498cec1fed3e95de671f581d7fd5573c061d0e914c5. 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/USCGJ0797297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476a865b7fd4b8f9c7e5d5632fde47be005e31c49ebe7a08720ef1bb6c348646. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USCGJ0797298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90792a7a0a97f73287f422ab8a3a2e02ba04314eb3e096d31bd7702a200fdbe6. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:39:36Z), 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/USCGJ0797300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf562b8695a0ea34be4efd4392449e7c12bbe0309c4c29b93b4bac6a6723e6b34. 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/USCGJ0797303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0575d47b9a04ba256cb67413b1b4277f4e85eb6515512e5c2723aa8200a75a87. 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/USCGJ1272076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647390258dad1dbbae1f547630ad7eb13dbda916dd87fd0a3ebb1b02a65fb47b. 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/USX9P1246524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899e7b70d9310a35023dcc3990a4a427cd0b84ecacf7f5547f8b3668372f1ed8. 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/USX9P1246525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3586be73c1d63da80c9a157586ca83175b6aa86961d28fd581a9156f672f457. 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/USX9P1246526.
Identity Sequence (feat. Jillian Aversa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcff35d0b627af01836bf654de456b224ae8d29ba74fd1a331539bd0a11f8d35. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/USX9P1246529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f4ff26ea5d662fae24149e60eb95b7209694eeebc4317e31ab5ac5438b1b93. 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/USX9P1246530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a787a15424c4c92fd1d27f717e1cb270e48eeeb0628ab29857b476be2af969. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USX9P1246533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428811875c9679a8635da0d3dd3a4963d736ec7683038f2632b453f4f1907aa8. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/USX9P1246534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa524513afd4069ea059d87780389a93c6dc8776217d2e02186185a71a92c94a1. 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/USX9P1246535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45606d7570970fe4495bfd7a5fddf571c829bc8885f2fde04ee2fe644f8a7d1d. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:33:36Z), 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/USX9P1246536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757ffc7f3771fe5a38950fa67aa415ca3461945212358ec1575642fcf8666538. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/USCGJ1494782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6205f62a43108ad19a037a1b20b35676c6911c6de6c053dfb4d95ac25dbed94. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USCGJ1494783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59efec63f561676609a4f9bc573eea0a2d20843e0383fa7ef90bb9ecad932ef3. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/USCGH1884826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11890a1327e7fe09a01f80a7bc4ea647c98118858559a3dedbdfd6fb3177186a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:05:57Z), 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/USL4R2172563.
Monstrous Turtles! (from "Super Mario World")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9227dc585a387d17983fdc3784369fb47648a6acf34d32486b27b71a2d9856. 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/QZPJ32362281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e9ff30ce502919683f632a6b9e4f8536bdda5c20dbf5011d1353d5c0035518. 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/USCGH2509949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a87dbd38062af8b59461556804bc795def01a1eb2e675dfbe34f52a03eadb50. 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/USCGH2509950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc096e462e55a9bb161e06a1842aad4bc031446a5ef0fe4db875c0fd7fb98086f. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USCGH2509951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb91a9213fca07da8fa3d4fec3f6672d8d497d414e7e214dd92d0d9badcea07d. 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/USCGH2509952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab7e4806e9773fdaaef25e725f8c2f912a4e144539cf8cefa2d51e802efef3f. 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/USCGH2509953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a1cd89132dea05cbbd612afd5eee12c6b7b443ecf5fbebb24b57ad54f9dbd0. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/USCGH2509954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4051ec6679d7843b0f1cf2f858b3f28aba72d215c14075a72bb77e47e54dabdb. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USCGH2509955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47361e88ac69bb464af8cdc741ad23bf3c26889f44abbaa9db5f5b3f135a61d3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCGH2509956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8dfd2aaa5893cce16b76783ab3a3abba85d3e25ca4bd94431995c036fca5b9f. 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/NLC731200179.
Club Ocarina: An EDM Tribute to The Legend of Zelda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93af0434bb9231fd96e45cd2797986a6898f77ae06274f6ea3cdf3325892da82. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/QZ6K41901089.
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