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 0x4f2c85a9b77a7afc3c38fb45447db84d3770912466216062b0d6c17b9211bd8d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92159cd5-e80c-4d79-adb5-0ef117c139b6.json and https://artists.proofprofile.net/proofs/artist/92159cd5-e80c-4d79-adb5-0ef117c139b6.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 0x2f47fa472733f4bdfedc876bb619fdd4545026fa4da23908a4e01751b9aed714. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZJG52171925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535aa6b725127d78a0f0a22be91a457ee302ef85a74f056a707fffb42812dbbf. 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/QZJG52171930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20c108fd56e2fb4f47770a2663d508c58c8c1e7758c3327642243ba0cfb4936. 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/QZJG52171931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783b8f73346ac5702f811b91e7e090afd2c8a58558f403c3791025e44088ca18. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZJG52171933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d59ddc1d710b0e6a273747ce8f8e0c01e67110bed5e2a020e892d1b933b7b1b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZJG52171934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f553a3d5979b43388343903538d9c0c098d798915cfd417f9526ef7857f122d. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QZJG52171926.
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 0x63c91dcdf4b7fa6a14f89ea1aba53f5a77ed7ff74119dfb43f9f6bcbd9eeffb6. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZJG52180195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36606c2016291c17ae5d3a6eec5ba36849201fa1445368dfb8231c137e25eb75. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZJG52171927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa43fecf512349103dd0a6cca5a280b2b81956d12f7e7ba6c5b07d007eb9d4d2. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZJG52171928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a970c19f52055125459063271502b18a7570bf84cb1dc95950661d0ab620467. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZJG52171929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7d1362ee71d953d0c97753f09a9d79116b2c1533279fed3b34e693d2d473fb. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZJG52171932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cae5b217cfb6a1f1821a4d73692b53c915ddd56afb6edbb8c6c9884cbe3739. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZFYX2034455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf94041b18b60e5a2182a3054cf052d8c30600506c0afff95a7a06b4d5293832. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZFYX2034457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3f4807dfffa55d757105541a134f7ce5fbce0dfededccae89d1ffaf0556039. 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/QZFYX2034459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d3578282d85a3fa8533314d7cf2448806329404553e33adc502a9e787e7881. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QZJG52060006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2698d5b594d2506062118c8eafac3e597989385159aab4ee68ff1a451afa1f. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/QZFYX2034462.
Trapper of The Year (feat. Moneybagg Yo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6b3f8cfd11e50c7a34a9ede2e978a4bd2a52e95958732e6fbaf5cdfe6c8940. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZJ842400165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9028426d2868319589d3b2bf34b20a5d0f9e9e8b692e39b88ef36911b81d42. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZMEV2046169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a11a36c0831a089f25305b5ebde26ce8370189e8165d6901f79f86ef1e36546. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFYX2034461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e29d12d13a9765b283cc2dbd648515544f9ddbab918bbb232307c587a8f0ab. 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/QZHN61987796.