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 0x1012805c9e1555a191e715209bea55a860a36c756ccc530d08aa94312a0e7278. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4cb0bea0-84f0-4d22-b03b-12cc96a59411.json and https://artists.proofprofile.net/proofs/artist/4cb0bea0-84f0-4d22-b03b-12cc96a59411.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Seba Prada Live On Pardelion Music (Live Session)
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 0xf17b16c18ff1dd4f1936fa8094c4014cdcfcd2b130c0996cd73498a06ab11fbd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/UYM122401872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a5ad3374c419a925672ce18ee05822f526c415c94b418a773ee518f8d68e6d. 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/UYM122401874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c5b2bc7f963d370e8b5c5172d01a5a0f04df4c8fd88ea6c07defac942c2c7d. 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/UYM122401875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17b16c18ff1dd4f1936fa8094c4014cdcfcd2b130c0996cd73498a06ab11fbd. 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/UYM122401872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96ed9fed84dd5a9f4c8e7180ef5dd788ac15d1c38b8c4d1a3f0ee8393a903da. 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/UYM122401878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe981eb31bd21b7704547a7c9e05031b2c9dccacbde7aec861aa48897e98c202b. 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/UYM122401879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348341e5fc5df68bcf9c84f95418899a4a1bb48226d2734e8817bd5f0fdf0a57. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/UYM122401876.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f8d499f1ae0f2648eba40c8a2a4240b30e627e6a406b96ee02621783e1ffa0. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/UYM122401877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf70bceaaa3f2289ead10b097ab9b6010504c968e3229e4c1bc4c178926edc5. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/UYM122401880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871997e41a450731622210c276529176ea0431c9bed03e3a8a01fab73b6c6933. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/UYM122401881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524d6c665db7c35dabbee6dfcdd290aba073da1a8b76a8fa4903cbc68bc7ed7d. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/UYM122401871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dff2944e0c02befd2d712434d9a3df40174f062a0ec5a036d24678f99ba9b34. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/UYM122401883.
Milonga de Ojos Dorados (Alfredo Zitarrosa) - Live on Pardelion Music
Milonga de Ojos Dorados (Alfredo Zitarrosa) [Live on Pardelion Music]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62327d3a5aa3fd02faac31c3b15af040433ff3c0e48d11f9718390f0f19e7a48. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES5022000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc159112ed4204c6f78912f1de6a031466f323ffc4a5ad5320571b6c7e263850. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/UYB142319605.