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 0xcc43cb8651deeb814b8d140746964ae6c88c442fa44e92e46658b274a7f19fcf. 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/eaef0055-2453-4140-9165-9deaa4b99fd2.json and https://artists.proofprofile.net/proofs/artist/eaef0055-2453-4140-9165-9deaa4b99fd2.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 0x692786042094befedc2bc464882e4ee030570e92a116ee835c65a89e98f641b6. 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/QMDA62454945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85305dd8821f925334f8cb0f112c7f7478cce783ab009820d3e73cf49aae566b. 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/QMDA62454946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c60fbc5ca1c634e03417145dfa33d20a12beab73b0afde6e16ca0e19e12f5c7. 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/QMDA62454947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71abc8456d3a7d34a5cb74d4f2ea4c6b9b623997734d08f71d460c243d09cc7d. 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/DGA0Q2415337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420db8278931c5e45f13abeb013db7a10e65d34ae1c34df5cced2a9a72aaa336. 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/DGA0Q2415338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb0b3e030a4a63b562928163e6cfecb5a83fefaef278f2a52f47b5ef9752a07. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QMDA72430146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c3f6109c5464586831d3d23fa6bdd8e462097e59e84deab442c26e96e52a6f. 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/CA5KR2513343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf1fe68ff0d7ce0422893e2041c4f026c0a020096edf60babb12b4d6baf5fb1. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/CA5KR2515133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3b103781d36f1786fc7cd5fea04daee6a6747af8ba61186fdb737e52c5ce0a. 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/CA5KR2518020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce812187e139dfe67b1fe75e6cc7606344c1cff4e7ff8af2fb5626cc0c8bb19. 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/CA5KR2518021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b168e4aa61ca186e3527edb39b75176f902dbb0c2a5b2269bfe8aef894b16a. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/CA5KR2519806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7a1243495c3e7b449b81d102c27ca226695045f0964c28b1e61e431fecaa10. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/CA5KR2519807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd4dcd3c1185840bc44fb79d86640ce20b1906f82975601a4040a6b7a75e52f. 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/CA5KR2519808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303ac57ef8bf374c1e0960eeda3ad11183ee83925dc61d11aed7768349cc18d1. 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/CA5KR2519809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7774efe029a4a3b97165b493c5c0b47623a8891e82a26d892bca5b076eb73861. 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/CA5KR2518748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9035b13b3e91243def935348a8d1a8c7a8ddb56c7eb7fef7d2e200100391a0a7. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/CA5KR2523921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355580e78d6aaebaff74dc7e8b22bbd81b8dcda3596186b1371735c63727449a. 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/CA5KR2523923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247b3df334ec556994d8b8d0541931369a6299acce3980999b6ebc744bf7a3ea. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FRX202558533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148a2cf020f43dec9cece89058bc65a07a09a7b6dd6ec6a31e5a20f926fb534f. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/FRX202558534.
MONTAGEM LIMINAL NOSTALGIA - Super Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da00321ecc17904f4acce57f3384d975f0ce8697feac91a39a3288a52e7d11a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/FRX202558535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383bee0b2ff931eb5068008e5fae8d87fb4d38849fb104e2ce124b5b48a64f57. 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/USUYG1729206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4f502f16203ff386c4c12062b17ca13f393384d19611db8e9fc6bc7a16b67e. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QMBZ92526259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af85392508fb2d666adf1bf67ce60b9c1b385baf8fe363bf35ed315dc1ed41f. 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/QMBZ92526262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cd81348a7ce010b327cc1a120df12a468a4568cc6e7a1910dd94b288d6b197. 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/QMBZ92526261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf687028ff2577d43912061de961e581db65fa94723f4b55e2573e5447ca1261f. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QMBZ92526263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbd5f64aa0661a627b7d63f8c59b6cbe091065c4705870f9c4e8a7c077fb2ec. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QMBZ92576155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0bede6bd37e8abc7ecbd9c8ce1e41ecb9d07aab6857a0e6b124300a3c5bfa78. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/QMBZ92576157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fce6935e2752a4a1fa1663df055c15885f2a6e43e8a0bed717cff8cb838177. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMBZ92576158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca414a953ab2f64977b68b5053f45af579cd7f477885e42bfaa58b7c6bdd0aa. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/AEA3A2171474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea44573a51ed1d78f0315167832c6a6d34249917016853624925f4803ee8270. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/AEA3A2105019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62a54ac2f16565442c19203aee072804ac2c851ac56d3924437f43c5b91f4e6. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/FRX872576342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd195dba9298dc4456119f251123ae8584c7c12822e6ec260319405bd8f0017. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX872576344.