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 0xeca77649159be729426fd56daa3099d6b5e5ae06e9497da373b365a4f165e296. 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/dc9bb565-a724-48f4-9c9b-e1b5c32c4436.json and https://artists.proofprofile.net/proofs/artist/dc9bb565-a724-48f4-9c9b-e1b5c32c4436.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 0x7ba50c32dc5722a823fa359fc008e50d29cdda8bbec62cf85543bdffb88cb60a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARHXW2000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b32834b199ae4604768a31543dd7aaee53308c20ee8a22564fad0fd4e3ee9b4. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ARHXW2000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08de8a161853a5b51fc9f50ecd52bef132b099f7170cedf672a83ccf10523fd3. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/ARHXW2000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f567b86dc9c3ad2e26c4f42d5fd3d351b4f84cfadac4ea9ef552e89bbf0b27. 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/ARHXW2000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc87766132ec6390d54ca9e260a22ebf66999bf153ef7eb1c462b6f4607e551. 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/ARHXW2000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56752c5fbb88a6f69800e42f320bd6397adb519286d35cf8ff27b5293966630a. 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/PYC842403338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04312afce91cdd87aabec2ad4c6f535c0e71e7f30d0c8e754c7f7b53e45789c7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARHXW2000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54335e05298963b9498e0e1f0b64b73e6ad18e07417b1472bf6bcc17a9ab90a. 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/ARHXW2002006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8243e18ce642851af1438646b5ef729b8f10ad84e7de196e2e1430f0b7978cbf. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/ARHXW2002007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae3789bc75ee16304a54180efe102402d7738ef8dd8bbffa0f06a7f6e072436. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/ARHXW2002008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984d84971b3a767ccc6b5b2508192c0b2e419f2549b56c7255cb479a685d14d5. 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/ARHXW2002012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ae5ea8259dc05b73f0b737528f8514a55983e7f65f6db4da97da7418fa92b2. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ARHXW2002013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe1f0400d0a1bf645f36e4a6297b2ae82dae96bacad88c5c3d1cf114fd4c3a0. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/ARHXW2004331.
Ajepa Iñestraño Ko ñande Joaihú (Versión Polkas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9627c374b11baa8d5a7c49b4c42cd8cd83547a6cd77e6866a30c7f2fc47df52a. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ARHXW2001901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd968475a427f9819d9a07ed9c91cbc766d0e4a76be8693376ab7a24c85ab9cd. 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/ARHXW2001903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6eb2038032db9eea6d145a446614ec67d32aafcbded7902ba19b37aa87c449e. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/ARHXW2001905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2062a08abf9a99889c2afdb5c9f6433b6fb88407e632a87a685689e2d85c7cc5. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/ARHXW2001909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72f1150fcc8e0a3f4b3ed4858377b87b180a750983c23216ae9674cf5188581. 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/ARHXW2001908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cad632491e0640b3fef335b30f9624755263313f921dd82bbe85603eb128dd1. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/ARHXW2001910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82806f38ad75972bc2cab7fb777e500e6bf74cf8f7cdd2eb1c164ec150397912. 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/ARHXW2000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b74210955f3999846850d3bd6afdd22a286adc0db39109d28952d507c7bdaf. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/ARHXW2000034.
No voy a volver a llorar (En Vivo En Ciudad del Este) [En vivo]
Mix 1 (Dios, Pequeña Y Frágil, Más Que Solo Amiga, La Esposa De Mi Sueño) [Teloneros De Bronco En CDE]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b12d0c9defe42d3b104ef4957495c5ce03703bdd76d8fa560b762f5e37a350a. 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/PYC842504755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c571730404e2d1f639a52aea381fc71250e14dd4e15ea9fcd32f6f849a39a3. 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/PYC842504756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f8eeade7e4b5359e12b74bea02fc77e064e8a40ed35c82d4ae79f603db66e5. 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/PYC842504757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068b71f9b6da90dbb5cace0a1327fb79251559f156b702427fc6107b459cc3cd. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/PYC842504758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617149c3f86ad6fceb3ad8718dc2aa9bdfdb0be59eccb407d1b641368ba8df3f. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/PYC842504759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4526afd2584b55a46cbe73f2fa162789fb3b0c8ebd4f5e82f359d3bd1ac19a85. 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/PYC842504760.
Quiero Amanecer Contigo / Pagina De Amigos - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb950ffaabfa3e1d724779d0fd524820ffb6f1cb21313ebf3aecee47797144f90. 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/PYC842504761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cb068d26a52ef30ece8108466c820ce9713af889b36dc0190da2843b9c7262. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/PYC842504762.