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 0x3b3ecd417dcafe62034e1bb7cc6200d69559dfebc1def3bfbda5548d35f953f4. 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/81f17295-a04c-438e-87bf-51cb6111aadf.json and https://artists.proofprofile.net/proofs/artist/81f17295-a04c-438e-87bf-51cb6111aadf.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 0x28f5031f0ade56237254af8f40e442eb1628605fdb8d2bd93022f04b9ff1cb72. 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/QZMEM2059416.
Activando En Vivo Vol. 2 Desde Houston (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef92f49874b2c0a39bc13e68e1168d209214266d380dd5bbad0c8ef523e001e6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:21:45Z), 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/QZHN32200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2f9135742c3d5c4dedfaeac1e190729d913ad8016894c27ef18c80eba9b4ac. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZHN32200126.
El Diablo Me Tiene Envidia (Screwed Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d721abfdfac9f075756d3e4a2d74dfb8f90c831d748cab7165e103cfa5e248. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:24:40Z), 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/QZTAX2262577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5696beedde47dd9c6acf9a880505c5e6cc237fafb591d43b61b80544bae6a727. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:33:30Z), 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/QZNWU2352384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e536146168d6778861d528d0b925c01b384257fdfb54fbdab26d691bc2c149f. 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/QZDA72460820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c784329c290f43bc1a63d416d4a39a515f148abe643ff659395ffe7ae03275a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZDA72460822.
SE VALE SOÑAR (POPURRI DEL TIGRILLO) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1a7ba4bcdb826138bc0d47ecd00490c7eea2dbd0a170a3ffdddbf44118ad46. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/QZNWX2489167.
EL BAZUCAZO (POPURRI DEL TIGRILLO) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06272903e5784d434e85eeca9447569b463d66534eb4464f779fe2f9a733f591. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZNWX2489168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f5d7b5f2bee044cbb1f7caa5149724d3e5bdc4929e918b2bd3e32f3b22cff2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:08:11Z), 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/QZWFN2474083.
INTRO / LA CAPI / SI NO QUIERES NO - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3fa2d6cd3252c4d264b643780d893709548797b367d1d9338476fe8945e428. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZWFV2405786.
EL TERROR / EL DEL PALENQUE (POPURRI DE LOS ALEGRES) - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac5df892493bd26c2bc9303f11123c56b9bc74a25fc3abc9ac4db659dc62613. 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/QZWFV2405787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82c028e425edd28934f0e0ef70a85467b97c917c28cf177f997cfe8610741cd. 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/QZWFV2405788.
POR LAS CALLES DE CHIHUAHUA / FLOR DE CAPOMO - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b70cb263516b38a15bb474cece49a877242a48faec151b3f645a746e0b0385. 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/QZWFV2405789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3e61b4a29683641f6831226c2af769069514767eb0578d9bb2793941c170f2. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZWFV2405790.
CHUY Y MAURICIO / 2 BOTELLAS DE MEZCAL - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0726b51b745d4223da4b27b262936757e011e8807633a8d85b20fc4745cbbeeb. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZWFV2405791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe647ecfb37b7b19270b1c34b92fde07b60add25f9e6c18224174394c7cba43b4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6P2543154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8cf45fa0bbd85f1b057d8f2dddb29958ecafbd34e9df02059d4cfe4910aa35. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZK6P2543155.
El Ayudante / Costal Lleno De Piedras - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3640fb708430369c344c16f39839e4610b4433ad1695fec4fb18ebc677bb20. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:33:08Z), 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/QZK6P2543156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa863804de590972b8a736caabda1f0c55996cecb415080d8ab78c5b5d8fb050f. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZK6P2543157.
De Esta Sierra A La Otra Sierra - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629294535456366f8aa50b3537a0a512825086246e4628408a06aaa5c9dd135e. 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/QZK6P2543158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c36f76ac8789d292147a6be15e602038bbe815d6b166bdf862c143efd48faa. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:26:32Z), 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/QZK6P2543159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52aeba6c4100fd1cbcb713187364324b35a7df443b32705ef90c0a43bf7b0c4c. 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/QZK6P2543161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c52caa019be8487c9801db8b3b3367b6b3f9bcc897041f3d3724ea357ad74b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6P2543162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475b41ddf1241a6e4af12fd5ed85ce0635b0ae0fd053be63e8e6c4f62252514f. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:52:15Z), 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/QZK6P2543163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf462306a3143f3e06cbfd8fc39e3f7b31a192f2bd043cc7add6065a812780c01. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:09:51Z), 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/QZK6P2543164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107bd71569123280be9358574d9ed36b9fb706ece44c27badf78706f587887b3. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QMDA72500755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3597cc071207f9a0cfdfb49ede0d496fd40b7444c52af9ad813a5e8aaf4949f6. 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/QZK6N2453713.