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 0x47dec39eee3ac9e26116e2a671fcdafdf603fe8a3ec7cbee5146506b9e5e9153. 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/7f17955e-2d9b-4706-9913-99b787c8b9e8.json and https://artists.proofprofile.net/proofs/artist/7f17955e-2d9b-4706-9913-99b787c8b9e8.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 0x49ce306c3f23433ec111be97dd9df8b6ceaaa184082c11645414c88d136d46f7. 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/QMFH21500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9cb5a6ed7afe64d0fef76269764b8633381e25105651495aaf21b7468fdb68. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:25:25Z), 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/TCACT1608547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b33c0eae15beffb46728eb68952d24180e5df7746e70545f8da4511a7f6677. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/TCACW1601936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5646f9e46a9ad930dda66e5ed48ca7f24bdd8edea61519b3280c0882446ea1f3. 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/TCAEB1936966.
Lowland Hum: The Wild Honey Pie Buzzsession
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57250849f264452568a995f0c0e95b035b090bb4041176fe4f8c2c2c773099de. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:07:59Z), 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/TCAEC1937955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b47ad71f791688b27317688a52e07b6202e2a60c58632529c5ef7e1089ebe1. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TCAER2072313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d583b1faf8855a9a62292923929358a9f581654334486f68fd00acc9502ba7. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:36:39Z), 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/TCAFN2152892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bd71188d024f1731f3a261e3973746efc3c3850da405f7bcd2e4df81d9823c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/TCAFN2152903.
All Night Long (Ain't That Rockin' all Night)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62908a34ba1815e3c9db5770d313fc376926c7f8cd88826ef8f2e3a75ca8419. 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/TCAGA2272554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95984f22f6415d0e314124a88b6896bd52898c82d063d01036bf255aea7ae89c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAHH2323725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f0a5865234065800f194737dd15b7daa7a3f4a1360f25c251669afcb804c8c. 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/TCAGL2228861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95984f22f6415d0e314124a88b6896bd52898c82d063d01036bf255aea7ae89c. 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/TCAHH2323725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81b1fb83127ba53413325ba5617d326e3a18305bbf704d77c7cfd356fbf3675. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:49:51Z), 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/QZVEM1822254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef1fba273844a1a0a32ce9698e641ad740cbbe78a2f197b8021bb802e44fc79. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:41:18Z), 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/TLVEM2468545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced35edb705cc5438008aa1a4364e714bdf1e7d50eda13d4cd8d292985e476aa. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZPEW2521100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7491e5d0f1f23dfe96a48d7cb31c331f0f5b04e502211631e4e7fecaf005a206. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:02:10Z), 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/TCAHU2432552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ba4aade118bebe1b84dc359a8a587d0248daa050b8c17ce3a5e1b4610d4e83. 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/QT2VB2431924.