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 0x9ffd3955bb0362550c171a472bd19e8a6bfb0626ea52ef6248ea509d47db64bc. 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/30a19aa2-d8ab-480f-9ff5-53476c44d412.json and https://artists.proofprofile.net/proofs/artist/30a19aa2-d8ab-480f-9ff5-53476c44d412.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 0x2333aa133f0157cef7d8dad9dbd090639091caaf64f4bbfb47544979d78f3324. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QZES51867920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd413aad65ec96dd62333e97f15382009d429103961e3f124939df2403f835ef9. 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/QZES51867921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf238625658b38420ac9e983d68d589c00113ad8155ba903246740ce71dc91326. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZES51857657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3dce724d275a3565f95959d8e5cddb9c4f6ee08e6321de2285db1e294482715. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZES61805562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd9120acb500c97a2921e5b79cd3fdea50d3601f7f4aee301091a7b54a43a46. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZDA51932769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4113bd5ed3abc363a6508965b11f76a74b1f5c82d577af1c2d6d246450a843d. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZFYZ2090986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea8c1252d28884ff494ac802369232f2f52c6398e7de64a82dc6f92fa93f096. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZFYZ2090990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58124f1ba5c899bd6aa2b70ff9a07c179e929f715d5a6cded389cf697d6e462b. 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/QZFYZ2090995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953d9d0383c180444cb440febf38d61f356e4a0b6a0039366314081517bafaed. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZHNB2186323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818edcb7e7ce67c762b2c0fbf9d4a2d60649f5b262bcdffcc1a67157f84f77fc. 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/QZHNB2186324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568907936374c326d18c077ec583ce530e92685afae8acf74b498931bfb829b2. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZHNB2186325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8df4b1d890e807af0aad4275dc32bd5ebb9cf6e35449c9b881b92aa5006d281. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZES92303673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a4e64bbfff011bcb212b22ecec4832eb0f198720fb5be3db8a0c3c79b727c0. 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/QZNWQ2320143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8f34be36654024ab5eb99686695ce13739f8256ba5ae263b997e6c1e20c6a3. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T05:07:11Z), 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/QZNWR2336440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6e50f54e8cfec0c3b61446d1d4b4e8a3314269670168b003f078958878d747. 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/QZNWR2397425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff0a005bc780623bc55e64a5ad9f804cf911a237bb008b3e9e2e05818a2fff2. 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/QZNWR2397957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dedbffe0a70072b76b116a870881cf9fd2032d20c8c8b296c881c83dd3b180. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/QZHN32446441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38681303350f3dde55883dc901723606d31f708e49550150c354b62c2027359e. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZHN42413902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b89619111b8378fb3d749d8d0e3616e14056cdfa4e0ac6dc96eec92937d1978. 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/QZHN42425315.
God on the Dance Floor (feat. Alejo, Bass Coma) - Yheti Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc791a9d4d693a04804cb78e73076b213a402b880a528dfcb239e865c643bdc. 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/USLZJ1412912.
Purpose (feat. Yheti, Hecka & Mt Analogue)
Genesis - ThazDope Records Compilation, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a27b6352dc902612e7d57f0b67a136dc7a9a2f900a437d787b6d62f75dc060. 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/USLZJ1563685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9ca887dcd964a0c04e72e19720d21d28d7cecfd0181d8a596efaadc82b939e. 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/USLZJ1519072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc562a0bbf72e5cca3c56f0e392262b70ca2b79b3ae4d24bf70f822ec0c9ec3. 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/CA5KR1805177.
Heterodox - ThazDope Records Compilation Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6b1dff95c882a5930ab391abd2d059e59b11f2ba4e38667eed825eeb77d8ad. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZS1Z1649648.