1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xf559ecafe3578d8c33cceadb122d2515c7240be7f0b2cd04059aea27fc275b9d. 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/5c64df1e-d0cd-4f54-8037-f08fc420cb19.json and https://artists.proofprofile.net/proofs/artist/5c64df1e-d0cd-4f54-8037-f08fc420cb19.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 → block OTSBitcoinBlock must exist at that height 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 0x8049731d6343bd00eaab73ebcdd390af0c15cc10de40550c8c7b3af60a8d40ea. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USWMA9015554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fda37698939541506c66374768f8916200a7ee3e738ac133bf77462cd59b22f. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/USWMA9015555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada63cf0a15debcd30950263994c6eec79b4e4c3d5b7a31a2ac718c0e044f557. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USWMA9015557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc88d15f2ade54a94335c6fe8a5f3a95e595ec6fd3acff58f4f3e0ee0a13b887. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USWMA9015562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff9404555e8173a40edd73560cceb331f45237811c4b27baf41ea7c64106253. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USWMA9015565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661410a886e326fadc73c10b67e59ed83c24f7fb00f4f836a9a576f59105caca. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:31:05Z), 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/USWMA9015566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038c0a50dbca48f6ef03ebef8fc764226bdfe6ca197fdcaec6e0a28529a6c43f. 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/USWMA9015567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a6575d510de104a891a50e088733d5efb10e6b2937962fc2459153fa6a368c. 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/USWMA9015568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecacdce32604a65b07abcbd13f20357e099aef03a9b98b1ff0fcbd163d61e239. 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/LTA349500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e14bfd69e9033732c84dcfa619d0b1f997c0e95ea73b45629c166a123bc329. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/LTA349500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40b7e2702459dbef8bba5f600adadf34c58465ccc38220a5c1642f8a828860e. 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/LTA349500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e4181aa42b7292353d5c7980c23b2529e2cb05e118eecb526b17ffe4a3bb83. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/LTA349500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf758d8823bf07fbcdbdb9074c27ed402a478937b662bbf6fa36cceb8e4d1191b. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/LTA349500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8080824ff4460bb6e47fd24b53b275944483c8c0262a22ef406e6bddfa51ebae. 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/LTA349500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c59abfd49cbe18ca702ab7d3ca0f9f8765c380844a068a318207386ace6f97a. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:00:35Z), 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/LTA349600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe420c8759e510cbeda154cf0edf8e30f1375e6eda28596bc4799ef727114452b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/LTA349600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635ab9d651c83fb0f588f4a8f447d5120eeabe489920ed37ee8dd38dad810691. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/LTA349600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6edf17fed7f0f046fbaa7064a7155dde26e2b3c9f1f9fd2b0e8150200e0222a. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/LTA349700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7e96b43bf97dfa4f62ce9285314cc2ecb7e295f97e81876fd15ccfec4a170d. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/LTA349700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28dc99e892c83ec406a77b668d9213a098a199afa1224645c01cd0b1a8c63860. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/LTA349700008.