thumb|Bonet in 2007 Maria del Mar Bonet i Verdaguer (Balearic Catalan: ; born 1947) is a Spanish singer. Early life and career Bonet was born in 1947 in Palma de Mallorca, Mallorca, Spain. She studie
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 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 0xb304ab76579ae7757bea728243f4f8b530ad1bca6e313c1847703126ebaf98c2. 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/7049082f-5b9a-4b9d-9106-ce855b19ac95.json and https://artists.proofprofile.net/proofs/artist/7049082f-5b9a-4b9d-9106-ce855b19ac95.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 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 0x182f668fddff5f73bf6dd6fae19d317421517b7f1358c7d25a60fdc4b1f3df53. 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/ES5107100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907e97c7ce77b74bba4dc43c369bd5343d7781348e156bcf16c16701e534774a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES5027700167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4baf881abfdce51adaa0dff54174b708b3bdadfb619b5e0fa95537e02ecae68. 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/ES5027700164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6bc99aa1de041c5cef7c747b881a4216210bd612d55858bdab42991e8b14ab. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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/ES5027700165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703ee8844351d63dd1f76a6586ab38589703ea01c049bf768958aff19a84d231. 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/ES5027700163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35f1e0e6d2ae58ff374620e3d9fee92afec048c49dc6cc687c45f187ae79c72. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/ES5028100161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6500dcba8b16e6e1a8da64c8364ee0eb7a1b705284f7ce869356af550f4457e5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/ES5028500128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe082ad24e4a5de1355f66f64ba1662bcbd9656e409916b0b965a118f6960ad18. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/ES5060625903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf912084253f0daffa5720bee9e53aee69003861811307f60f86e162296162c52. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ES5060625905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314a126ed220864f3298fba4406fbbd33a902219347a7d7fc377861067e17113. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES5060703903.
Blaus de l'Ànima - Més de 20 Anys Ben a Prop
Blaus de L'Ànima. Més de 20 Anys Ben a Prop
Fira Encesa (Canta Bartomeu Rosselló-Pòrcel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6844de3d342cb1845e27c01fa09b2740d2ab0bf765727e8afbb26baefbc961. 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/ES5061608201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7617deb5b1ab136579db6f19d0b9e1aee2ef18e1a97c207120d7d0acb7257eb. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES5061608207.
L'amor és mar desfeta / Digues, Amic (En directe)
Maria del Mar Bonet amb Borja Penalba (En directe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc261a164ba213fe0cf2b8075c1895837505c9a56f4193a79fa888bb993322e1. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/ES8572077001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53bf7b3f66d5e8b3fd2ac028e4f7e9ee0d603728418b40d78985ff705b38c4f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/ES8572077004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177b00c97e8bc839ecbdc7a85b5852e29e2c50bcbaede1a417ccfc0fcee7b4fa. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ES8572279617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58914e9f22462a8e913db82ccae9cfe4cdfcb6d0054dd00d651e8437a25e4ca. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ES8572583801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed5851ae63de905ae8988d09427d7d538b40fbf85fd432e6a5a723f08584b62. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/ES8572583802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd30e4b7ead0d7196a375dc81303909929e7f95a3b7f9f1ccfaf4a8d5819a72e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES8572583803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc49c3c309e89bc1f017f22e606ccea39f1a528e43d2a5977400cadb1a6c0fd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES8572583804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee61a6275d8f5d9623cbbb7ecd45e2555b109e472a8e3dab307a6fe7b924fd82. 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/ES8572583805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e6e2f206ea0fc2d938f3825a7b649885ca652b24be6336a54593c225a738ee. 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/ES8572583806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5397b7cba10a1e41e628172b92312f6d4e459ba36a0bba9357c0eab2380cef06. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ES8572583807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d14d2da70ebdb2a92d7bf09a5a36b60ff8b62ba0fe5b89a127b7da123d1f23e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ES8572583810.
Coloma Blanca (with Maria Del Mar Bonet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4003cb2a60da0f3bb8f90729635e3021c42066cfc7f7a819b7c8fbf4cd4bb0a4. 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/ES5108900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4003cb2a60da0f3bb8f90729635e3021c42066cfc7f7a819b7c8fbf4cd4bb0a4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES5108900024.
El Gran Gato: Quince Canciones de Gato Pérez (B.S.O. del Musical Documentado de Ventura Pons)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e629e9bc7935e884fe5bcecfaaf5e62c99dd3d130e8e96e83ccb1c27405ca2. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ES6100883908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dca8f4b25883e6124cbe920955d02c99af71078c24d9cd47ce82aea084b3be1. 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/ES5060625928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2331c5db272ec6ae89ed30d15b5e07200c8dfc1432509763c56ae1e120374131. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ES5951605461.