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 0xe2332bc662347a0504cb77c1050d2f70dd22429f6d6dd5d6bb1571d39bd7e6c5. 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/b776cb6f-ef53-4e51-b922-f6280b4272a5.json and https://artists.proofprofile.net/proofs/artist/b776cb6f-ef53-4e51-b922-f6280b4272a5.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 0x43f18c80e9f69aeac10b45bf857fb90c2cfe9c21aed16b51cce4e1afcf50e7b1. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QMDA62101114.
Nuestra Historia y Algo Más - Cinco de Té
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48257f372519210e6aad6d16020310e061555765a8998cd772355b10eb76fdd. 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/QM6MZ2220231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93828f84431ba787e2bbd9ffb8a2228480edda9e7690c4e26ed17529a3ac54b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QM6N22271031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594e62cab313d0f3f4ff637ab20116b6c0ebb28618d1d8a958c09b1a6855bc8a. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/USDHM2404495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0992b80159d17095394853613ad6d8e3835435b7f1694cfac223fc1aab40ab8f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USDHM2406971.
Intro / Carmelita / A mover el Cu y la Jalada - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37274a620de021cff91dd7dbb4c41297f199603368f676f02fcf683761a39fe9. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/USDHM2408985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1ccb1f666b0ac4855746851871606526f3577617fc607a0315001270beab40. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:02:39Z), 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/USDHM2408986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4d702683884618cba36d5468234bccba3ab70cbf94aa8032ea5a274f34b760. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USDHM2408987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f92a51c36b9a79fe50208e4d03abd33c2f051ad36f37e5d1068351c66d7730. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USDHM2408988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8783253e5b18f066123164f988072a19450586bf4177f08ea4f305f389c36d9. 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/USDHM2408989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35907dc058833a5ae63a410706e6d363f2f3b75b0f1afae3ac9dab51cd426033. 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/USDHM2408990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c459640989f3b78f357ef1e0f4ada00e28f5fa4b216eaf901e443acc589af1. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:07:58Z), 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/USDHM2408991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f8216e0ff9ce1c72b2cd758d471858c549656f2bafa9fd58a9c5dd0adb845a. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:35:51Z), 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/USDHM2408994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb23973928e4d054571470b3941f34a98af0d3ff5813446f950fff0b7afc005f. 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/USDHM2408995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b8563888e21b08469877b8fa82593e94e8e64671b6814a504c3c5d15c7f89c. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:42:38Z), 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/USDHM2408996.
Popurrí del Simbolo (Levantando las Manos / 1 2 3 / De Reversa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b961267711e6b3c934c65b5b5347ebd2370667ff6eda453646ed979ec9a288. 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/USDHM2410140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d993454fdda8eb5b2df6f59b820aa6a2bb9ae6746db8ab6ccdbaa0b3dc11fd4. 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/USDHM2500293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15df2f44940b9c96e7a607d9237d570fdab63108ea594374c19c2526c38bf91c. 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/USDHM2502645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1992e3b51280dd7f7ce0745feed643bc541b1ad5fd1aff92ab648c49aa2d95. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:14:13Z), 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/USDHM2503240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13637661b83426db59d37a2852f45e1a87520d9197bcdaada8da0e2bfcd2a20b. 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/USDHM2503241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74eb58f2218074f832bf96c713330b6507ef2febe283af57f2b4e71bf7e2a309. 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/USDHM2503242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a71fbe9b7906afeaf26fda5a11917b80204f5728e91f84a49f5c43e4c6093a. 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/USDHM2503243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ae69129d794e550e76c0e8f6014a9f687a63ec0b6b6a99003ae242bb73c22a. 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/USDHM2503244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61927533ab95bd03e9e8d881c4c4f80a97e9aa3871185d779af22f8de45244ab. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USDHM2503245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5928012e6a11acf6c98ff1cf2c69747b067977706c7767272ee41b09b638716. 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/USDHM2503246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c5165a753dfbec20b4d9c3b6dceecefd2bb4e642ab28f1a77da12c2ec71bb5. 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/USDHM2503247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d2f765541e716f88252b7c096d75caf632a07bf21b85aed07fa63f76f913ab. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:37:58Z), 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/USDHM2503248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d6683a982afc4fde198573bc8262ae07cc4a662996b1fa13e595927d6db52b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USDHM2503249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b6d947debc3a5e07ec55dd01b5a9fdb892fc00dabebdc1a906f9bc62dd3ac9. 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/USDHM2503251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa870e1c01aaff4a0ad27fe2cddbf37a18d4128f2c2044ee329dcf54fa36f2be4. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/USDHM2503252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6952fc02350783aa13bf692ce6cb26f2fa213d9e533bb106781ce71f9b2231e7. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:41:17Z), 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/USDHM2503253.