YTD may refer to: Year-to-date, the period from the beginning of the current year up to the present day Thicket Portage Airport, Canada, IATA code YTD
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 0xe7fa503bbca0457b8225380fbc6d153009a9b135f1cc9bd6cb11ebd8462a840d. 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/ba0ffbf2-99c5-4c61-9189-bdc07a68c13d.json and https://artists.proofprofile.net/proofs/artist/ba0ffbf2-99c5-4c61-9189-bdc07a68c13d.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 0xdef15cab0675cce38965784c1659db4d903b953a0320c6ffb30a3647104095df. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QZES71901789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ba7f87c7ca23d4fa1f82aa68e4d3ee1f50f18bda83b7fef0a8bd9ff15295eb. 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/QZES71907609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf3dd4ba3c9cbea0a26df0fc7d38e157e4467e86ed9dffdedcea2e4ce3718b8. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/QZES71902493.
The Moonlight Shines on the Forbidden Fruit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1232d9198e81d31f52da1b6dc2784bc26ce14ee79fc992bce7837c8a01a050. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZFZ52002463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47af3483dd13685af6adc92dfa2e0cebf97e654588e9dcb83c672d63fbb031a. Chain 2 (Bitcoin): anchored in block 957835 (2026-07-13T09:48:24Z), 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/QZES82065864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d8f84fdebde717c0cf2fa59a49f16a35dbee7bbcccc4d17f88f8e1e031f406. 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/QZK6M2033008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66038716143fcc0aea9da2f28e2b395289585cc900d342e0df2d7a7691ef2a6f. 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/QZNWS2078712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef7dcfd2b68005a05d98bb1de04c7a9bacd134d729dfb4ad5f4c878af617b13. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZNWW2068181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf13e43de899535599b706ca353ae94ca273da4a0e89b92c8a05c9070a6fcd3. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZFZ62120628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5464d47acb49be50f6dbea1f02b51b5d8e1b3d6fea079c2b245f4ecbbd81a2a. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:26:52Z), 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/QZHN32156388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca8352de9dc7f3b29d41044762b1d482b68ca70ce74f9c4e7d23ca5f05002e7. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:16:06Z), 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/QZHN32156390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2f4140cc2a443e2621d3b6afb762b6424af43ef9af10887cd4135ff0d047b2. 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/QZHN32156391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe01185f4931581e919eef806231914b7dcb2150ac92c2f7db1abcb6d7449f8. 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/QZHN32156393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce678f74784e5a0c8b4ca46e751ec40e01363d0bd2392167db9818e062941bc. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZHN32156394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef88e9420374c9d3822c6f6438b2e1bc7bc47e83fb1eecf7c25f57ebc8c7cb2. 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/QZK6H2198989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d7cf81c163afcc74b32212359822e91e81e2b89a327564668821cf9030e174. 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/QZNWR2134526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ace52ee4d1fe9542c8bdd56bd4e336a1aabeae489a7ecf8a4d6c9658dd57cd. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/QZHN82219017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b78aa5e7e846980ceb48e39784d8736b771659c341a95aeb3db2506154c6a20. 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/QZTB32286948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13682bf000ef8c7255da7f2ea10bc092b16719aaa83adb65007ce1bc3ac87df. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:45:42Z), 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/QZTB32286949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c70893de7fba247a69fd6fda8e6a6989815e8d38274973c64722a1b86d96c6. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZTB32286950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d6aa37a8458dd0d7a06dd103482ecefe427de44926d669c97692e191dafc77. 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/QZTB32286951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed40849dfc957fbf0432b6b59d642e164e7d8cf1245f1ab2438461bbc34bd3c. 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/QZDA82300987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac86cae3b3dbe3418a0290515b9dc0b40eda6fa4f098fbb317678ac87a00658. 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/QZDA82300991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fc01c16ecdfe5d0c2b7d5aa29786c936f891d25dfefb28b8415c663bb97da6. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:09:22Z), 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/QZDA82300993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8849e534ee6b7e1a2f1980653751d5d56647b7b761f1ec1f51ae57ac9bc146e. 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/QZDA82301001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63a71f140eb80c44a4c6d751961955e9c8163670ab3dabbb300ed22e155b26b. 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/QZFZ62476719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a87ebd771e792159d986364512458ed08d4c3b5e189e28e57aac3a15b6e044. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:06:50Z), 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/QZHNB2499078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61dd315b6fe87fd8fccbde67cbbe7227999771310d72f35b8603bd7c66cb5c94. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:05:37Z), 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/QZK6M2475389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6653998e0d6629856df4b902535ff793cae82af5f957483066f5b25ff69bb7e. 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/QZNWY2485177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3180152d9637fb0b6ce22c637644f662360f0a257df62d25d7d4bd68f69021c. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZTAT2489723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd533df6c7a5afdb39fe03e1f3758b5f3b01d2e268586fca52dc6ea9ce0f2a2. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZTAT2489724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6653998e0d6629856df4b902535ff793cae82af5f957483066f5b25ff69bb7e. 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/QZNWY2485177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b8b16e23cdd137317cb8a8c2d68a47bb54a81481411dce2d2a5e0f6c9202aa. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZWFR2412352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb30caf874a0d8ddfe877739e19982161ce12792771d3013ecbc09152c10aad7. 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/QZK6M2551027.