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 0x68d18cf1903894659f79aeb3f09d78cf00844bae4497e00701e5292848a11935. 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/ab319d41-df70-4af4-9525-54922dad1abc.json and https://artists.proofprofile.net/proofs/artist/ab319d41-df70-4af4-9525-54922dad1abc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Salsa Mix Para Bailar Toda La Noche Vol. 8
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 0x384498a9156f11ee8ff4d8464f9bd4b5420c2e79dc3c2950c99a1620210d7693. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/CA5KR2277959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ef1106843e280227bd9a39389f94b688f7307985705e5becf6c640f9267f1e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CA5KR2327960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893e4c9e54c3f8b9ccaf54d642c8afd51415e355a80d67c9db01f38a530aa8ae. 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/CA5KR2327961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837ceb9216f84a04eeeda01ba18074e89317ec473a71e8fa09e0e983a553b2f7. 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/CA5KR2423709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ae700bab5c98752eca55481e52332066201776aef93dfc259330a79a2f1d46. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:39:56Z), 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/CA5KR2423710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1f49dcd2df512168bc56054df35fc84f82dce3f62643490b2859a646c437b1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CA5KR2423711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f9881256765686601aea83919327d6e5a32627d1252e403c85901ea8decc6c. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/CA5KR2423712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d6905a6cce018e85fc354d09c14ebd4210cfed6dc5a410c24cf08c16e26414. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/MXA3V2423292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70aaf5741421c12e99cddcbd38f25301eb5cc0afb70ccc8f581072dbb6688fba. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/MXA3V2423294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156b5dcf288367f9ccd86b2ae99b427911faf6774935e7fa5e7b5495e80e31b2. 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/MXA3V2423295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede638c3df08ea84eba8641c3a0a5c9ce3de6c11e0d71497f4276126484f0634. 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/MXA3V2423297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff5bf5181434f2ef5369e10cf514dd770398d2036f16882cecc161180c35cd4. 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/MXA3V2423299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7380e18bb8b397a29d973513f8042f72803f24b827ac77edfa7531a038c2e005. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/MXA3V2423302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecbee2f761a69ecc63fae4ecdeff586e561ac184c1de140febfa29c8dbfafb6. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/MXA3V2427341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7947f5a221c4dd9383a791806dc3b313250ee3dced20960d9e922bacbd8e4d73. 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/MXA3V2427342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503e7a4d3ce6ac8a2b669a0682f7cef13c18a29112535187400e656a4edfbfce. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:02:00Z), 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/MXA3V2427348.
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