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 0x5ab9a1081c686c5f9e1bf7f664dee903935fac24e77199d22402a176715df64f. 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/91995149-3306-4498-a7ae-547438b7b79e.json and https://artists.proofprofile.net/proofs/artist/91995149-3306-4498-a7ae-547438b7b79e.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 0x439f54e0ae1cd153aff53ed5b345066b3617b9d430882e9eab91281610cc66b7. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/USANG1918015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba43a02785e574ab0a9fe9f52ecd03d5835ea040487637dce639ee809981bb7. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/USANG1918016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0b69da379d84e8ecdda72560e37532af0508e75ec8027c601c1e1999df938e. 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/USANG1918017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff1a65e213f6675a5cdf1703320c931eb9e06d314412df5c7df05cac105a5e0. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:41:36Z), 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/USANG1918018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892b086607326447705dd168c0fdfc813fe3de0c3f2cc7e446324e3c6f3d4374. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USANG1918019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99605abb9869baa9f19e34863660983c5abe46d23231b5dc061ad9db2560fb01. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-17T00:13:54Z), 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/USANG1918020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12306fe7a52663cb8d79f3a374cee7243acd502c36bcc21e1a1739e02a31b97b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USANG1918701.
Gordon Goodwin & Dan Savant Present: Jazz Anthology
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71026052f100822b521aacd22aa453c5ad1d0d5ee2af75cf7ad3f636dda28ef6. 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/USANG1918412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628b92872029dc50cf94438d2690d0d8ff9aa8e60682e28633d43c711c51f920. 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/USANG1918441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b88e7b9cae6f61520889fc007bfc36d9ad8fb55e8aca847c39dc74847b97299. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USANG1918430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46aaab1db891e94781a8c94944a4588eb60e09839b1d59de01680fa7a505136. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USANG1918433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf67cecbcb856c57e702315a865ea593f4b482ef75d44c970949782a73b62b2. 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/USANG1918423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da2bdc49b4cf82501b4963c3347c97208008869479fbf7d7c0a26e6c5653d81. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USANG1918424.
Larry Goldings Presents: The Funky Clavinet
America the Beautiful (As Heard in "The Purge")
Scarlett Burke Presents: From Dust Till Dawn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200194794f0c4384fcfc885d9975a57ed6ebe02cf8525e9aaf3ac35c81ee4f54. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USANG1928551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180b5571c392697144e826d0c01f547e9168c0c76f03dae68bc7895964025c81. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USANG1928554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5c09ee413ee4f437417d3b110936e1a301bbbaca311d65885ef8023c58153f. 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/USANG1928557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61447dd1971b261b710d2717d63280569b5376a4e04daf6948ead8e5f269efdd. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:40:26Z), 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/USANG2015269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0be2a71d663aa035a0b7702f127348dc7fba59895be8eb26fd7e267c5416986. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/USANG2024065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc787950c84591e5ba238071ea5ae0ed637c687791b92daf0e03db3abde3121c. 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/CARKA2100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c031e33b4dbf4fa064019c0fa7b994f06d6410bd583e13d8ee05b01fc03af3d. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:36:53Z), 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/CARKA2100370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71eb6106756434078cf45fd3dc637056bb2b359ce7ddaa9039fcadc2bfe37c9. 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/CARKA2100379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a442c91bb4608700ffbc28aa288ed1e9e3871474a603e5ada41e64aabec3adb. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/CARKA2100483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6d4baf2fb8dbe3273b785e3dc42b556bbcc32b2635163f1e95cbf13a894bb9. 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/CARKA2100740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dddefe9ac2ff062604da040c654ce2e2c02170935da58262403736775f3e480. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:27:52Z), 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/CARKA2100779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe062d443345137097e633d137b214f03c3c77c3bbd63501cbdd285c6b8944601. 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/CARKA2101347.
Sounds of the Diaspora: Amapiano & Afrobeats
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bdf70fca060540543bbe63d79a186c80ec046e53c7bdb9ba8463d258fd349f. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/CARKA2104575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af712b77b77177ba04597b8c67934771217e5025650c042334c6eb4157f8b8b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CARKA2103867.