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 0x99a7bc829b73d620cee0c60c9f72a2e94687da7faa24d8c6b903fe3613f9a823. 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/b3b64ea4-1bf3-462d-9cc3-0dac317fe80d.json and https://artists.proofprofile.net/proofs/artist/b3b64ea4-1bf3-462d-9cc3-0dac317fe80d.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 0xe1470f624bebf22b9e652a90a5222ada572db5707a04e64331723e640b841515. 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/MXF550907005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8f0d372ce3201d482d5915b2d0ccbbdf45bf83cd40653162bc677a026f6b67. 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/MXF550907000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3136d05b70c625eac1e5abe738511b45ffdfd8659242eb6b9be0ac797b634e3d. 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/MXF551256501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b893368636e1acdf4bd2bab92ca4cc900af4a922a30eb144dab91b72bf4a63a. 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/MXF550907002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316e1fb4ec4c52a2f083dcde261eed1995cc724e674f943feb5b4a0a606586ed. 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/MXF550903320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9098584189e73c40376f7410cfaa0e6abda4d14577118c629fd231006d470da4. 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/MXF365603220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9230194d9c5fa4e9a3d3a276428a24e444e9ec2a4c94c0c74405a31d509bf29. 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/MXF365905727.
Las Más Bellas Canciones ... De Serenata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc041f7a542a3b7f51fff61bddbb891b633c7b9ea7d3e600dec302ec743ae199f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF550903266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20f806220da01b2fd710ff379f1463ccdaf979a57956c537d9bbc1981daed74. 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/MXF550903232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb48d0ee1bda5244cb267b75d3316eebce7e4484f5c27bb18312b4c3ddbbda72. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF550903957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e7467ac8dec9fc8e160717c27ed046a69aedb35b4b0583470e541406fd6a8d. 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/MXF366006296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7651c94848411d68887eb0b3a77e2986405f868eaeb6de2bb8314d8021022c6f. 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/MXF365905819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8007c763779e2be5bb305da9f4c1eebc270d448f5b0f1050108fb3d1ae136b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/MXF365905729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3048fa00022fa7c385e19de58a624ea4312dc6ff879e38957081de4e72102f05. 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/MXF366106809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd072d52e3283ee92ba27fe89f54b9eae0b305ee59d3c8f0b51da8d671f6c9c94. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF366006007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5f993e062c70cdb44e75ee1b77b4a3bc4abb0e9442811ecadb3d98c376f36c. 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/MXF365905624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9c215a55200a0a6597a17a27ab8ff020882bf41d44df6e562555f56bfda35a. 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/MXF366006174.
Arpa Romantica Musica de Ayer, Ahora y Siempre, Vol. 1
Arpa Fantastica, Canciones Tradicionales, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be34a9edf900ca04781b707814bd7c802ad06ada7bf6598ec523e584824ca77. 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/MXF550805361.
Enamorada (feat. Ovidio, Alfonso, Juan Manuel) [Mono Version]
Dimelo en Septiembre / Cuando, Cuando, Cuando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ac9ce4b002682a3d966980066a608d5da50b312aceb7ee6f1553925e114444. 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/QMHUY1453184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcdcb787e8a18d3921c4a76017df1541b39b9252f017230e8c194fded3866058. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMHUY1453182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0382f0c3f4cc166138c4f55338ca36536ff6b99e017183f85d08f75ba4d72f0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMHUY1453187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725bced28aa751b12fe55fac8103e685d5c42397f5db8fe1acc6c53f2dd2e757. 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/QMHUY1453189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9434565a7a95e3a1829c3ed6b7bc3bd158b9e846b4ea67c69d076d966d1d85. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMHUY1453200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278534c7fc1068bd580965d8c2728e6f1b3e84dc11b19a94c23bf0fdf70d9607. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMHUY1453192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbe9538f595083dcd53f77904fb690b0860b7b0baa86a3b7a6b8c4acf59d516. 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/QMHUY1453195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17f5508d7ac558844c3d10c0d99ece8fdbfd401be8137850a500e2ba296e70e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMHUY1453188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a90159a67f50768a90cb91e8830048f1e74eaf6d8da6e6b80365ef55257123. 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/QMHUY1453191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aaba2e191949646d3e7ba355bca9491e7833d4cf0b175d34a32bc56ed56ca37. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMHUY1453181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286c72d845300cc7fc45c6865fe1fcb7bf11b37c1d66ecc8cb40c119522b7667. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMHUY1453183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedcf312d97e6adcc4a214b6199abd8153a48e705cbfc924f73a8e2b70398b35. 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/QMHUY1453197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca58ce5cafc3d44fb3caf343d5eb51861e95d5709c829776d4319eed7ee6f227. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMHUY1453185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a81927fd650868219dee46ed5abab5b351736ee8600ff856283f1b5f970c7e. 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/QMHUY1453194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d7bff574165c253ccece51bb9f43d6a2a5e7a20067ed2a4bca082d4721121d. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QMHUY1453196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030f2dcb03b689275f27588ec61c28d7d4f491ce846e3230fdad3d5b45bf2732. 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/QMHUY1453198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a007f63eeec2c3220fc5a5e08109bf03609ec5307c694d78f60cdb16b2c8a2. 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/QMHUY1453186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb26351962a6fc50ba5462f91a981d1fd58e6853c96f63e9fc50038dc66dd10c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMHUY1453193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf171302f24b9e347be688a18847bddfc5bd054f7fc86edf3e4b06d7b3dbd06. 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/QMHUY1453190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f977a9423eb23a0ab857c608f6642fc7a0d40ea501d6b37f8f0c3c3230711f9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF550907517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8079ce8efa5cd33304169ec2ad8f1832f241450e7b61c32c52cded854427b6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF550811586.
El Origen de Sus Romances, Vol. 2 - Tributo a Luis Miguel
Lourdes Gil y Los Galantes (Remasterizado)
Serenata Inmortal… 30 Éxitos Inolvidables de los Tríos