Papayo is a volcano in the State of Mexico, Mexico. The date of the volcano's last eruption is unknown, but the existence of lava flows overlaying glacial moraines implies Papayo erupted after the end
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 0x98818469a2b4441f401b54b5abd35efedf07f4b3b78b72157bf5f6e5dbc0d39f. 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/abccb946-6726-4c21-97fa-a2188596b3a0.json and https://artists.proofprofile.net/proofs/artist/abccb946-6726-4c21-97fa-a2188596b3a0.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 0x9563addb9f76fafaa8e56773048be7a301e76f06be42a5f8149e60cbc88aed1d. 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/USJ3V1209535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14c8160072a6f8742780dcdff9f792d192ac57446b2a736fcb70c4a64962ac6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USNPW1400178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61386c97613f315c73835493c07c48fe3336ebcca6a1bb773aa0bcb14e43867. 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/USNPW1600224.
La Cumbia del Cucu (feat. Victoria La Mala)
Whisky (feat. Osmani Garcia, Adonis MC & Maahez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca30a5c688bf236ad5d17fd128abcca9bf1c655080b89f10099b8c065a3b8b1. 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/USNPW1900325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934da130ff8a64411cea1caff0562936562f19e942bfa23bfa186233500f9333. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USNPW1900340.
Echa Pa'lla (Manos Pa'rriba) (feat. Papayo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83fa7e6d130d38b491eab5a9c53288e825a24e611953f2a001505fe9d247cda. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC11201341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a573d1475a7896e0eff62fc052b17088c5ca1f5dc4eb94c29659a4e409ee72. 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/USNPW1000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc79b3caca8e0c573f002902cf99cfda0afeb83260259903d0b085a60aa22dcc. 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/USNPW1000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a573d1475a7896e0eff62fc052b17088c5ca1f5dc4eb94c29659a4e409ee72. 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/USNPW1000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc79b3caca8e0c573f002902cf99cfda0afeb83260259903d0b085a60aa22dcc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USNPW1000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4872dc5c1345e17c48d46d3f2e224fabca715a506605aaa16811b3fe5e0e1eb4. 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/TCADN1819830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a00f04a0b22b77f26f22599fef2a4d05f479294d4b709cc8a4b638e2f2907f3. Chain 2 (Bitcoin): anchored in block 959147 (2026-07-22T15:43:44Z), 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/TCAEB1963861.
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 0x740749342eb1e196648bbaf70048d7849ecef43f295760a73b743b349273e17f. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USNPW1500198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42486f4edf7d2bd4cbdd32c4a25658eff5c03c94413ba5d142385059c1f7354d. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USUYG1395789.