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 0x166a9d7b3b88bf56a00b8c01bf32d8474d444809af9590cd89f507ff5f1bfc22. 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/a9605147-6a7b-44d1-9e88-797b44441035.json and https://artists.proofprofile.net/proofs/artist/a9605147-6a7b-44d1-9e88-797b44441035.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 0x02f47824b45c43129c89d5cfb90c35465b4e479464480df0137b0937e971ec61. 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/QZDA62198307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631446db9ff5af44da51aed76c1c5c2ced84b9aca696bb31c8cee4d507932b4d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZMEN2187628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79129ac98ee29894b85950deae0a6bc48025a789079c12b48a013dc26ba006a5. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USUYG1413990.
Backend (Remix) [feat. DaBoii, Lil Bean & EBK Young Joc]
Back End (Remix) [feat. DaBoii, Lil Bean & EBK Young Joc]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0c9944a5b77fe425f4b90c9ba3f64d36c38acada3fd90f6aafcf9afad4ea57. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USUYG1459377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52dba843c44dd8d5e012fba685c3ecaf90460d38260f3457180b30483d194671. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USUYG1459387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925d228298c150eacdf8e7d6c3166352b99837b829ba5bc8d5fe475896b147e0. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:39:23Z), 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/USUYG1541830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746cecfe8ad177923cf2cc2f842eaddfe0bd12fb68af0524586f1a887d0686ac. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USUYG1541831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25651065ac9323a06179a39b2083587b0b241bc61ec54fecc95b94eede35b52a. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/USUYG1541839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0af640e632392fc90181b777fad35bf97d69b13c654b111345e8ce1d8cd9988. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USUYG1541842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426b6c11468aed6ee7fbd56ce4f11785ef2baa5ab2700f0561cf0088dad8d138. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:22:46Z), 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/USUYG1541846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b9fd913ee30d9d31065a7df77a35febb84dc2b0477fd64aca9e078f18b5973. 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/USUYG1511321.
My Section (feat. Young Jr & Unc Tha Hunk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307a462c06bf6a2ec14ddbf4c0c0fe683b7a7c7587ff19cdc4b1adbe9c00032c. 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/USUYG1364465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b9fd913ee30d9d31065a7df77a35febb84dc2b0477fd64aca9e078f18b5973. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USUYG1511321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9b3dee2a167baf92df7c03e07f28791a610af61efa75833ef3d95a8b0c50b0. 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/USUYG1422280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafcf9f21d57f8673677e12a9518d2156c5b21b51a78e977652de6ea246ff502. 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/USUYG1515230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372a6a996259f6b2f23767a8cd541800181339695d4546bc227beb8f3b693f22. 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/USLD91731960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b89df5039470bc96f5d6bf2dcbea578ed39b3f61429007a9082aa940c07a6b. 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/USUYG1274012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be8034d195bc9a662f9ac57fa75a815dec72ea82c80eabf4de7409dcda26147. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USUYG1274236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4dc4876805e54a2c560788e1337a7efcaca7a6e86a69d7a022b4033dc604ca. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:25:49Z), 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/USUYG1471224.
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 0x0e5b10374d2916f8d6d86fcea4182e072a10559cf6e8dd73d4eede7a49a19cb4. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USUYG1552126.