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 0xf5c9da9e72880491c7f0a01eaac5192d256c57669774b8dec19224692ee60fdc. 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/ead4edaa-4f54-419e-b791-966695c63690.json and https://artists.proofprofile.net/proofs/artist/ead4edaa-4f54-419e-b791-966695c63690.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 0x6f941a488fd3762a62afd53729432a4d9e4fbfaaf802fb4067226467f3ec5615. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/QZWFR2304157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abf3096d0cf9ecbe15fa5df012a7e0a69d5991cfbb27b97dc9fe07ff567e084. 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/QZWFR2337328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad500e025292712e5a36d782b3bd3692f4447bdd3aac9ea96e949047ffe5fa8. 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/QZWFR2337325.
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 0x4804ddfaecff2075f76799b6a9dcff05f81476c682f9764d7c649f43b08c10e7. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZWFR2337327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1669364818a56a687e272c1b59e9e079d8fca7af013bb3cad915032b31274732. 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/QZZ792472242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6251951756fadca4d72818836fe13e18990a63b99f68b1d090beca7d5233aa38. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZZ792472243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e15218c2684dadf0bdff32e54d9bfb7dcc5f54b9a09873f5b9a9b1907a8fa40. 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/QZZ792472244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431b401072202effa254eecb6adc4e396ef55daa390bafd704ede8737a04d165. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/QZZ792472239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548423776c33cfd21169f8e4c0728a62921bb09cdb3ba78a96f90992d8315d4b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZZ792472240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd2c67887cd14804ce06e20b5c77e9749fba5b8303f27684b3df4e7da25d4b3. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZZ792472245.
Let's Get It! (feat. Lance Skiiiwalker & femdot.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ac8eecb751e8b62339fc38f3d4bb6e4b94a593976d6d0141cbe09c1b6bc2b3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US38Y2421331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda894f1955eff9751834c2422b42e40c69f8367ec72c3fd48fe1db5707d6049b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US38Y2420924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd79cbcaf67420107f5a0ef51fa127b2c0365a124ab5d15b41a2a4ea3ab4aace. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US38Y2421332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30c5ce0c1b52e2dfba0892d56772c1d37239120d5f0ffbbc1b3f2a0ba6b9dbe. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US38Y2421333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac57a5a4b4a9b3586fe264fdc843227c9061eccc47382781afc60f6aa92063a. 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/US38Y2421334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd907272769ef1815e821f3a78d1deb479af436fdd963d1a1d7cf23db588b2c89. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US38Y2418897.
#baby boy! (feat. SONNY, NombreKari & Menace4hire)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f313999713cfb7767869a5013015b9df4a937a11a90b1d3e9a1b5a028b6c6d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US38Y2421335.
#Dawg! (feat. Senite, Menace4hire, Gayun Cannon, Camila Isabel, LowLife & Aija Cymone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e785b38360ce51b92d10621ae29bd9b740f9aae2c469b1106df1c54baef217b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US38Y2421336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cdfb3407a559f79267a5b331b1b2e6f1326550282ff94ce39143fa59d269ed. 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/US38Y2421337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24990fc1c92828ea34a7645eceed41756edf52e788d4207ccf4c750d9e451d2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US38Y2421338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c0c0ec81052d356d1ab3175f090f34a9ab2b5b8aed7e66e8e2ac2626833973. 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/QZPEW2418872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5279b6fcec1e1b5afd1a6bb385c433a303af7a3e145c619bfae14ba599975776. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZPEW2418873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9ddd51ab181c45ff4a8087ac359a85553f13e029c3b767fd59770bbe32bd87. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZPEW2418874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ae4f8636dca1cfcf67b3f009affb0ff2c9a317d73e271c163a9528975a3780. 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/QZK6L2453858.