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 0x3cd5bb94b01b0dddcef7b71c79e7186de58e097d28f4e113f4b6c64a6bba54f0. 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/f25b4b4c-2fb4-4149-84dd-c7b5a7472558.json and https://artists.proofprofile.net/proofs/artist/f25b4b4c-2fb4-4149-84dd-c7b5a7472558.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 0xbe608e905109f1cd073348b56c2274bbdc4799669f702ed8d8e4ed5b745d9a85. 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/QZGLM2212875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5640fea2ba2f7e18df78e396f5e388f8d1cf6fce32f08fd76d50247ab9d18e. 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/QZHZ32217855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84dd49cd4cc8708500c12898faa64c5f2196ace526bd579e6a2745987333b0ca. 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/QZNJW2299210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a641e2c0b1c85e66bdcb82679ec17c57e691c13a90a5f26dc3b527c850d6244. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZNJZ2256587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a97bf92ccbfbf77b9c7e08be1c5bcba6937c4144c35b7e622d6abe98a307607. 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/QZPLR2323983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1519e7bab2564c53a3689d8266bab88c85e96db944026aceb9643ff440941925. 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/QZ5AB2394792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da21c8f17b4dfa53d8d5fdfb96ccc215e2fc753b08c9762bba10cc007683386. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:42:35Z), 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/QZ5AB2396920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f5a86f05121e02c3c6a4d5b74c0b2c7987b0fc256bd7f2470f69eea8b4009a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZHN42386758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab2608b8870b4c7b5c7afbe34073a423d88c8de17b7f02464cbc3fc64c6bd6b. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:06:20Z), 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/QZK6H2347616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f36118995f693c7e445dd7547e5c264474aa45350e95e6c9bc837a24eb9697. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZMEQ2399893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e001eb014af0120a442fa66e495501c4c25ad36d6e6ddd20477dbac001e9364. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/QZFZ62407020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19e49d0e7b84a8875bd82b401d83454281f27ad5c843eec5a046ba7244e83af. 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/QZFZ62407021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc82415dc40d9258193dd244498425a51e6d57134c8267cb01438dc8d24d6ff2. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZFZ62407022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7873de3bb3d86ffcbc77e56d2338251ca4a420ebb70793c80655783a3b95cfca. 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/QZFZ62407023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdca319f449d642008ccec5dd25a04f0465c05f4174d978ef137f0f2549971d6. 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/QZFZ62407024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b72744ebfe53bae5701016a1934fc4584cb947e4a1b6447fe45c1358ca2632a. 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/QZFZ62407025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf713092e3e6e3924bcc9bb0ad22761abcba1810cc515d59e4b92a2b993817e33. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:14:58Z), 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/QZFZ62407026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875bfb02f1323dd301550c7844f80f540b0800b69f77be37ae44ddad3b05f370. 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/QZFZ62407027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425ee6e71b6508e64552f4190d94972f0ffef3f755ab05463673b1567bab0826. 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/QZFZ62407029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fa256131e09a082b418762bd86e0d93be548b3e47cd681a56385241d98a3b4. 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/QZFZ62407031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416836ea87026283e6798c849bda2c09f988f63e5b36c5e9a783a03f8f6a9613. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:11:35Z), 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/QZMZ92480008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab459ca1aa715a1d0c57a78cb83e7b6cb3881436babcd84bdaf9143eb357cc76. 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/QZNJW2405166.
Canciones Arrolladoras: Si Tu Amor No Vuelve, El Final De Nuestra Historia, Cuentame (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a78bbb42a83a2d983a136f3eba71000315028aaaa82b533b59dfbde1c65ff8a. 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/QZDQH2433337.
Complaciendo a Nuestro Público (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd375aaf3a0e2eff51bf9eb84c40ccd388d94486cb59874a606f0620f88fbff54. 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/QZW9K2481887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6329433ea906de0d56dbf9b1762f3561d2bf33d1d71209ebb12a857f07ec7995. 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/QZW9K2481888.
¿Quién Es Usted? / Y Si Se Quiere Ir / Tragos Amargos - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c14f443b8bf41a36019f0d5c649108fbd9a0352b0ddf55c1be35967fae0d0b. 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/QZW9K2481889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75fabf6d5781a13d33d6f2cc3b1c86783bf7d1dc75eb74646fa94982a84326c. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:06:47Z), 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/QZW9K2481890.
Los Ovarios / Basta Ya / Inolvidable - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a89591bb66ac2afbea86c0cc9b023bfb4c3236cfaa3f18ac1e6096003a944aa. 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/QZW9K2481891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82443ac347fd9079a060695c9d59696e07fe142185434f89273350b2f5a0981a. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZW9K2481892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0744cbf627249871573d7a4ef507058a667f126fc3275b83022ca22bffb59a76. 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/QZW9K2481893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77505ef39d69da7213a904fda46f52b71e96e363572257f81a1b1d87745f6731. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZWFH2516070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27d5473316643dc115f5d2704af1ae620d8ea75da52278f4d2e5788dec82f1a. 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/QZWFH2516071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30b64248851d1529bdb7e07eb2f75936f0b26e044fb676a9c685b6fb5654ade. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:31:11Z), 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/QZWFH2516072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f2d5099570912b4a87f48088a29ea3f1cb4845528ea6399b4860ade21317b4. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:37:00Z), 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/QZWFH2516074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20b87be8dd7831e8a35fe8e596f3e34a340bd7732f418b13642286983b0e6b0. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:23:52Z), 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/QZWFH2516075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98d5785a8ef1285bad3064d5061319863fbebcb10dd3973d27fc1b3f37557a3. 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/QZWFH2516076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4c8c9278c59daf75cfc16462667e8ce37acffa76bf28cdb01f09001fcf89bf. 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/QZWFH2516077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb14fb073c09f97fce5ab0dfa4f22cebc26679c803286f44862fa6db1e90585. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZWFH2516078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ab525ca20c1f6267267c457bd774ede0c066695f7388497bf85ae32d29d48f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZWFH2516079.