Futures may mean: Finance Futures contract, a tradable financial derivatives contract Futures exchange, a financial market where futures contracts are traded Modern Trader, formerly Futures, an Ameri
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 0x72415650869aa6228a2a474932a972e44f9c329aeb557a22fb62953771481c46. 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/1b886e0e-deeb-4bd5-a283-bd98102770a1.json and https://artists.proofprofile.net/proofs/artist/1b886e0e-deeb-4bd5-a283-bd98102770a1.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 0x0b22498183ed28f7aba81778371e12b1f14917b671e658e643e377f8a4af0332. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZ9L91700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f92203663af55effe467dd37c58edb927875286527d0131648ce77a34c356b. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZ9L91700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc033711cfc0ddadf791fd3289484178ce6e2a1af4e658a5963a68e0ab803c7b. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZ9L91700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f76a9182f909e1ea955f44d208fd1be5a7aa4aea6456cf0edf2b1c1cd09851d. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/USACX1900187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a23361d23b58bba0caa1375f4098701cce25d55850593a10eb3607e45cd6bea. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/USACX1900196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7539596d24eb22a734cfa240fe560acb4e4ac63507af9db0280bf682ff79253c. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QMQ3X2101443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f4a583115d9903b356c1d60abb09d14f511cb9819f1d17f23a52b7e108209f. 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/QMQ3X2101489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c618107436a52d1db39a11da9a7327577a7c7de60ef04ad61683bcccc9e46cb. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QMQ3X2101491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81898b5f9956b6d1bad07a6483bd47bac1f07406919f7d28962c3de1ae00ea5. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QMQ3X2201537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417e8592a642dce0ead6d0ce8d7c5e57d532a6555e1fc5c3a8be7afa551ce29d. 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/QMQ3X2301936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f99e31a6cb7e524fe56f9011219d131ac70b8d2d85d27be9575e76766b9992. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMQ3X2301917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458fb045b01352d4b9d487a8e560f57f48f4d464d564d87ababa8e226558dfdb. 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/QMQ3X2301955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7050f78459f6c08e4fa605f48a90c0055abe07083a1f17f695cfb1ade5b20e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:51:51Z), 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/QMQ3X2301956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7985600ea85cfd380f0b0ad15d9ef139fd2cca95b945071d4e827545fd7167. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QMQ3X2301934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fd1cbefb3931195ca73bb56d0ae5259e7df30f9c66e2e81aa131a48a87b271. 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/QMQ3X2301932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b39f7b7336fa38aad35f99742555e7ec7a65ff652c3687b13c62976f97397e. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:49:37Z), 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/QMQ3X2301959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552b8cd3d102d5714e76846186bca76f3e648d47977dff4072a39cb5e1ceb268. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:07:30Z), 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/QMQ3X2301963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b669595be432059584e0cd0380c3f0615a1c1dd56666e4f503e3b54b8c0e767. 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/QMQ3X2301920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b67bd49cb0870dd1b4abfe21cb6587bc8c4a06264fb8f66747b1de06296a0b. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QMQ3X2301964.
bU Fashion Show 2023 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62f1a33823e98be50e3e97c7317687ba5e4a0b0fba0a1ec0ad662d5ad7763b0. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QMQ3X2402391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d58fa21555cc94d3a09d97a8f75b58f7da2fcba26431bb685ca3ad3f2703837. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QMQ3X2402392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67facba56d1da85cce35ca2b851781b6ca487153ff8810c2455d2f9f4b18637f. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QMQ3X2402394.