Celina González Zamora (16 March 1929 – 4 February 2015) was a Cuban singer-songwriter, who specialized in "música campesina", traditional music of the Cuban countryside. She is best known for co-auth
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 0xed68fa454a6652c9e1a2a97a3407886593112b5bf115c44b6c48b0f3231277f5. 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/6a9fae6f-6dc7-4e0e-ad17-79cd9ed61d08.json and https://artists.proofprofile.net/proofs/artist/6a9fae6f-6dc7-4e0e-ad17-79cd9ed61d08.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 0x68c46160fe0b2e6a9bc275f319d696270331eb5ea5cfde3c9a88cca61038f4ff. 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/GBMEZ0935388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36241ed1a8e1afa0b380605ce37cfeb6db215e0873ffcad93cfb14df113be34b. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBMEZ0935376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e3f6620c6e96845ec3eba1158985e31303e6b29745a6552d92b2b704597f01. 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/ESA011306324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c549fe3384633e1281982ea1a8fbebc3926046964b1abbe907a34e2e974646. 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/ESA011306327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b9ff2669c530fa9ccfef2820ec52f3c4b79916a81466ffdaebe2fa0bf67043. 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/ESA011306328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f79423f3f34dcb318a1b088753bb4cdc899b4e0e2cd04b4a40b8fd0fc512e59. 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/ESA011306333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daf3bb12d387605857b3ea00e5f94f0da84bfa1e18d35debd000076ae30b87e. 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/ESA011306334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaee3224035b1506fc764a43b1d6b35c54475f818336b508821d0ac24204749a. 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/USWJV1000323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9ce797b32a99c89ad7038356349d90262e6d5c9de86b52233ffcfa194e776d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USWJV1000329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa758f5e7047e0f9e9fb577353c2e512f01d13b30434016034edb0134bb1d330e. 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/USWJV1000332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3417bf6aafdbe5a2837d2cec76e80559ee384a477666151f656db32cb3a7f08c. 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/USWJV1000333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe621d375c80227e0bdb51834926fcee020e9de44025c55806410f875446e6a96. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USWJV1000741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cf2964c1500f77fcc16a2ee0cd79ed8123b8c1a39bf9484ec19df6cf677474. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USWJV1000743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0666814e27ee8578285a0b7da481a4a0665773c04bd40904a6fcf0141ecfc77c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBBFT9500073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d724f0cd5bb3e9b1288524c3c803c357be5df22914515ed0fe087583f5c2f5. 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/GBHCD1609866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0666814e27ee8578285a0b7da481a4a0665773c04bd40904a6fcf0141ecfc77c. 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/GBBFT9500073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49b807a1281c09fa4772b9a3ef87c88316ac822fd2d2bd9ef0b709f8ca047cb. 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/GBBFT9500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd83e152905675f746b1d39d069db832ea892d6bfa520b54a988143516c9195. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBBFT9500077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9075f43c0f2825de94ac32039fe5faab51a1dd6f2ca9f07ad30bc601d48d7391. 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/GBBFT9500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8760cb4f872819e9a7fd39f21d2dc476ac22e941d8eeb5405596ea283fed0aa9. 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/GBBFT9500086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce113cc8b950373e5cdbcc845d28e27c5262b5f0e1412a658a514c2c1349ada5. 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/ES5021609395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee79a4ebe9d10e1b22b6d2ebba145fb16e72eb86cb392dec5f9e6fa5ec9fa325. 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/ES5021601024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2010f8c6beb7eeb6c2dfedb9e3709c03ec3a75a945b75b387be5aa803f655890. 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/ES5021601032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837e49b52a30ccfa7dba77ca9d28f89726ce141c435bdd867cb30c03e643f214. 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/ESA012245445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e48b69dcf028373aae99f63e32ec576aec4b3eceadbc7fb2795ea966ecddc13. 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/ESA012267799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4d48cb8c67d9838c5444c074ee2de6ff347fe841379e438b5a9760dc52a926. 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/USA371023318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2684ca20e8c9071a3168cfa70d2ef8b4a23e56b238b60fb964e7be88be13e56. 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/MXF171100879.
Cuba (feat. Silvio Rodríguez, Celina González)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa063bd95411515280dccb0ec009082cd718e6f29222e7dd4402f22032e06132d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ESA031422213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43d768962b67018925a7028660b41b24c10844e2c505793226be0c56b722898. 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/ESA031422214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1167e63bd827f457865063e0dc3ea51afa6e7e85bdb827fc1459b3c5d6cc74ed. 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/ESA031422215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd956c56993c2cdbac81cd0337a613744efe5cb18db7ee3b1ec249e62e0496f08. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ESA031422216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43ccf1b14133e4e98e372a2a223188ad20a61ab7154a1b2af8b50cb76e383cf. 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/ESA031422217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8360a5f61d9304f33e7ec27ac025250fee0070a06289cf5d01bee03e2dc704f. 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/ESA031422218.