Identidad is a sculpture by Marta Gilbert, installed in Zona Romántica, Puerto Vallarta, in the Mexican state of Jalisco. Gilbert donated the bust to the city, which was unveiled in 2019. References
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 0xc7c6a3dbe0a9964a95510c2f7befec897a84de322880cf22a463ab291e254440. 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/90d432f6-b51f-43cb-96c4-4bcfe2216e51.json and https://artists.proofprofile.net/proofs/artist/90d432f6-b51f-43cb-96c4-4bcfe2216e51.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 0x07542641dc98144ad7810161e3bfb91ec8ecbb4e2c3cf43ac1241523341e9587. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/ARC571800183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb077b0f58ae26f95401b2d892a83890d6dc35d7835ec047fb9d1b4c24b8dee. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:17:34Z), 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/ARC571800184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d000bc690682d7ff3cb8d788cb3fdb3aa9c51b98a6d2f008ce8ecba1b0cd83. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ARC571800185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347212170c94d9c092c363fe7ca0db2be5484561c56a3b9c01c8394d626620cd. 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/ARC571800188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f2ddf94a7865c63c21ebf3337c4121a9e9607095ef3e729b8e81639ca10b0d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARC571800189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd50bccab9e43e66e6473c25fb40fc0837de2761107b8feb6e71ac5de5432d7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARC571801787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d72b4a396f6cefc81682dc7c92887d374bdf51e4396e508769cc9afa27cd0c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ARC571801788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa50ff4b679c41efffa907084c266ca203f8d6ae6ef8ce88dba6f73a14f5b36. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:36:51Z), 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/ARC571802134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a361b2d1c6768c2f3e4bc6791600ce2937965b7698a5163a77d68591bc8f4f6. 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/ARC571900175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3977a1ab2f9fabf1e5ee6a81d4c9c001ae91fb81b4a30fa928a3d3ac3e0da0d. 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/ARC571900706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e26b3f8fb19d8f4db54f3000d5ce503d90edec15a5be4cb90ff906d737a7509. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ARC571901470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072b280712b6ffc07e538a009c54599b94ce74340070e103f5b24dbf8ff32f6d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ARC571902503.
Puro Norte Huapangos, Vol. 1 (En Vivo Desde Los Garambullos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5d2ed9a91414a423bba949fed07f7076f78b7202d44b50ad8746220378970f. 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/QZK6H2026864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385792ed5b2770146b935c8a70faf7a21fe5558922386c242008334d8785fcfe. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/TCAFP2112889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f861fa93b702da9f73c71bb3989255807220098c11221682c87e70272f5b71f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USA2P2147831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889f63d778b3933ea9cc4fd5e82240589764667e009e1d8fec17af0864e8f329. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USA2P2212635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f077769bf87ae9a1d12b2c52e24a608575ee3cabd39af63389f7c8cd5203264. 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/USA2P2231018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc559f7f895a4123cd327cb47c215a0e776c441726fa69b7bd1051376d663be35. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:31:28Z), 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/USA2P2231020.
El Taconazo (Pupurri de Huapangos En Vivo) [En vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf040c8f76100f2cb5b4e1f087351c0e443ab94dc7e4ad31f18e121852db87e. 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/QZHN62386744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2332bb29e472554446f0a4eebb438ea785fe725d27bd60396ac27a1b9ffb63c8. 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/QZHN32425555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1696e49bd57ab8c42d9ee9e6498a4b5b8f240b88b38df94d9001c28d3df5a69. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/QZHN62448707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f32a529731ccd1927b1e8c3eefb0262518b6ec60254afede4c76f7f2131d36d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZK6Q2470680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89bd7b43a0818b9f1968766ac0c6ea066bdc34491583d20507d0fc1017ed615. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTAW2486784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07180dd7d9901534523f540984aa09b9c08bb91839077be30a0e95a9b7fcd406. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:27:38Z), 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/QZTAW2483580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb163e3b7ecc510d61b14edfdaa34d533a70751f09fe6b75ba82b3b4495e94e6b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZWFP2469902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c44770088efd250ebd6a1728d1996dfc11089b522ee8db9f6a3acea87c9d180. 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/QZWFP2469907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb6a74d15ba61fc9718d6376633d0b68372475afff5c4c702d37d1e0abd1086. 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/ARC572312356.