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 0x9cf6f5cc9773ddc48b336eb5a9aade1c8e983054f344ddb0deedf92b351231ce. 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/df6e7989-9a18-4f47-8341-deae95db3dc1.json and https://artists.proofprofile.net/proofs/artist/df6e7989-9a18-4f47-8341-deae95db3dc1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
No Man Is an Island (La bouture dub Meets Baltimores)
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 0xe20f81eb5f84a9963bfe3db2a1d79abfa0c7206b0c7c305e713a7272062a798f. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/CH6542330300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa396276e8af33071ac652766f94efed76d5f958bb80e89a3ebfed7db66697c7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRPZ92312120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c2d60d628c1b1633e32aabe0fac89e79f5d9103ac0138b3434a49a5998e02b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRPZ92312080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa396276e8af33071ac652766f94efed76d5f958bb80e89a3ebfed7db66697c7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRPZ92312120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5369feb0e073c31086d75c536306f66b8aa94ad425f8052694a875a72b0e5d79. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRPZ92312140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f778079e9d09dd4caebbfb6198b12ff8138107787df06d3270367db730a9679. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRPZ92312160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bfad739dc8b0fb2f747e55a0a2a0eb8f721a46c34a50e13f3692657ad1a023. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRPZ92312170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3e973a755aa116c3f5f0403d506d8b1204c402c20365f1389edc38a90af1b2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRPZ92312180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8b9f2e9c5c6ee05c71b9e04288da32b87878f8fe2da2acc68295753a9df5ae. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:22:47Z), 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/FRPGB2431280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be215347c40d1f50159791357dc5858922b44e8ddfa30bc40e9b2c3c2eb583d. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/FRPGB2531460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e27a8e60718b10aec2f6415e2b685ba35bd7180ec6f3e7468ddbbdb65ff2f78. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/FRPGB2532460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeede763a8c4d4bd0c2918fce52cb116af99f4fdda1a0cbe7ed3fecd1954ee22f. 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/FRPGB2532480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe86d33262757817cf64f90f10b4112a96962163f4de6c0fd66e458c07a9ff14. 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/FRPGB2532490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82431e97c5bb295231abb0da8f2d0093e879353f05fdd125480e22df24a23d6. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FRPGB2532500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa45e1a450bd9fa7b7f9b7c022ffb9f0cdc4c6f9d7b417f0a9c856cfb311036. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/FRPGB2532520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec89c69e37724bc813ad7514959524bb618f08b874c12ce3e1de3bc41f2834cd. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/FRPGB2532540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f76ad3481f0d9a5a58e7f564e31722d5926521c541ab84dae8b8066c70d486. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/FRPGB2532560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b36c23ec9f93e0a485936ed994f5eee2aa99405150d745a19cfd2c13dea7ad. 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/FRX452593071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99492d40609043b7996ccbbf1452823c4de12b7d579ffbf75a53088e0b4cd546. 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/FRPGB2534000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dfbf63376d6a71d7a6d4827720a175a152fa5886260d84c82aafc0c2e45a70. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/FRPGB2535130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b47c5fbc204da9945ab7516aba8e4f71e1d2c59f4f149b2570dcabb65a5c41. 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/TCAHR2349722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0ff23edfcc2ddf8f893acf243bb6461c0e788edc7c79376a460abb146c4dd2. 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/FR9W12129043.