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 0x84877d65af697422c440e8f3cb3ed34fcda60ff69d19844507a0e6cb5c87f7f2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8014da26-d5c5-4293-99e6-25b8cfa0c90f.json and https://artists.proofprofile.net/proofs/artist/8014da26-d5c5-4293-99e6-25b8cfa0c90f.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 0x1b2d90e2adfba984d206c7d3a227a554d53fdf362fd6bdbd52a6e22981c058a6. 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/QM4TX1559233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7427758f0b024f7edf6b2c7c72a1b8531c692f3de4625774d09f61eafd0e7d3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/US6R21502922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff476d9f9f21810e22deca292a2f0127a6acbc5bfdcb108c4912691d5c70597f. 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/US94C0519905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12aca6d8221b1438663aaa07dcc40ea71e306f841845c0b16b508d9c369fdb33. 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/US94C0519908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13d0608ed7f2234e16b896c099143d2e1450b63417ec21f5e5ba10b76017ede. 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/DETB41500284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8db9e77d28135d521d515483476e49150942a96ef76b25973f0e5f5b324309. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/DETB41500288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f6e2521bf9262c648c3800f392ddad05a177489c8ffd557c2df6415255673a. 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/DETB41500291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2108eaf049687d6ad72b4dc68d0d3b057f10a00674951c2980c77585fc1bf62d. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USFW41913401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9579239750cc9da626880016110b8a9b06bf9e1d91b9b0a114531ad34dca292. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USFW41913402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf29300595288a2bc02b2b8ba23c0c5d602717e7cbdd851f6371bc774ca613b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USFW41913403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86202b783d36f1a83f667d76bc90c3f30fb941e5cf85be939b22da8783ba4315. 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/USFW41913407.
I'm Sure My Little Brother Never Listened to Lagwagon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6493fce3239b771a2dbf07e5ae7ca77a7f3ea89d71a7de1d35f054a69b8a1f18. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USFW42134202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764e911f583847989720c752d57a87d85e07cfa8c825288ff82df860748589c0. 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/USFW42316801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8f3823e640e0f1452dd8d4de154500f323c8138d30268f18b87eabbf73dfbd. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USFW42316802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd9a9b5e12786d66f63fa81eedc799c5d331a1b268a1ae538021a9ba92ef860. 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/USFW42316804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a42932d803ae105d2efb2269dbfcfc831623d0b17496612f51265c5d30c0022. Chain 2 (Bitcoin): anchored in block 957705 (2026-07-12T12:50:42Z), 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/USFW42316806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898adca0e7917cf9a418b715e51f06a2363b2deb906e53383e2daf33c73a6a8c. 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/USFW42316807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddfb4e6bf040fb27509fbebe5cc0c7f365f1d8f6ca37101862266c3d766ae8a. 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/USFW42316808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c14716eb37e1c4b5bf580a9bd2a78722fb3533cfcc16a2bb5a6272eec192943. 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/USFW42316809.
Red Scare Industries: 15 Years of Tears and Beers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35192a0d441cc6c0f4372e50f7b17c575022b8b1fece779ffc3151c7124275cf. 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/US94C0522211.