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 0xbf2855b7b8c015c339aab2cc7cdff3c7c39182a91d9659b68de2e207542a9006. 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/6ace6f7a-02f7-4d7b-b295-6b6ea6107b93.json and https://artists.proofprofile.net/proofs/artist/6ace6f7a-02f7-4d7b-b295-6b6ea6107b93.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 0xe22dc922064d3f8dec7688a5e7167d69b4a523051cb8f81869304a5b119cb9f7. 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/PYB552100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d7f94e4761b801b6b43aa36f374e634962c85f54b8985f62580664c59079e5. 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/PYB552100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ee140b5c126fc39477d91afd6d7a0459d8ab2dc789d85c3902a812b4d92584. 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/PYB552200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e617674512e50b238be5b8b59877c17bcf8050b550d5ca57193dae19ce72698. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PYC842302812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247a9f8543f3c2717b1c6264052e885e025c2fc302183444ea655ae53e006089. 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/PYC842303757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e3b111c807bb19a96ae9b599a3affbdf7127150d6dd93d8a239faf509cd42b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/PYC842403053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48047d81886543d679f26a7444c874870b5e091d192d7ac3b2ab111bd2825a6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PYC842403055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e3b111c807bb19a96ae9b599a3affbdf7127150d6dd93d8a239faf509cd42b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/PYC842403053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa68dce009bdb38672e65638fdd0a3c383568567139be4628402d3feba2e6cc. 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/USL4Q1822321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bf71fcbe8c4bcca35693484aeda0f83b813563f6fbba5e2d6eac1191c964c8. 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/USL4Q1822322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08830eb844d548becb925e3510d7cbbd328259dc99a40dddbe590ea4e79a63b. 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/USL4Q1822323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b4462de3b1faf6dca9b1b348613e5210fe4970491174d6ba1eb38dee3c94f5. 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/USL4Q1822324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bbb09e964b297c436344e443a7983f5805aefe0b3e914a7f27f512c736ba29. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USL4Q1822327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579469fa50f0072da52739756d41845f3840db9569312446e31a97cbfd051018. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USL4Q1822328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0a8dc9bf839f38a4fd08d75918f6c52388e72a8de5f3de373b9f84b7bc8d28. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USL4Q1822329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c0a9a09fb9109c1daa31865bda020e6d4d9090671b6ed735f187a2972fd496. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:53:01Z), 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/USL4Q1822330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e096475cfa532b900ab8fd58fd29a4eb35a7b5f995333510ab35b8a84001b7. 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/USL4Q1822331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247a9f8543f3c2717b1c6264052e885e025c2fc302183444ea655ae53e006089. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/PYC842303757.
Purahéi de mi Tierra - Mix de Polkas Paraguayas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb5f7cd732e933f8c13d97dc04e270f13e68b682213a3f5cb1cc5473f27c0b0. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/PYC842303538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e617674512e50b238be5b8b59877c17bcf8050b550d5ca57193dae19ce72698. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/PYC842302812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ee140b5c126fc39477d91afd6d7a0459d8ab2dc789d85c3902a812b4d92584. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/PYB552200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d7f94e4761b801b6b43aa36f374e634962c85f54b8985f62580664c59079e5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/PYB552100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185f045599a2419b9f6b28b5f39d62261cbc3027f7e733a37ab2ce4a4f4f6fac. 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/GBLFP1563345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17746e185021fc912d7b7c73422e34fd98269ddef00e14a7ef48ba36494dbb2. 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/QZGLS2450008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb0dd2710fdeeb0ecbf398934d9c43c6c25d16a916afd06f0c3e50a7731f394. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/USL4R2349613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11331caaa5cd221e23ab5f3c7dafa9837efc3f6ccc1d8617ca1735d9f92e8e9. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QZGLS2450010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9fc8364378bf559dd833facb64f0ceccb6e6a52749402662e2cc26ffa3ee9c. 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/USL4R2349615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166da52fce3184c7cab4c823abbdf727065991f00c88a96f20bde3871a96288a. 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/QZGLS2450013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39d647651c745207b209ec0e0adff1d0600940aa6641e35b8776d2ea7772fdd. 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/USL4R2349618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9745ad4d70e901fb6355d84a330402f648f46f29e8994c80b3526e35e81d1359. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USL4R2349619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc174c5b637a1121296fc98f8411e285413e205d7432fe824089f424cced5c4fc. 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/USL4R2349620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc204b924724ab6cab68680b246c8f9a568f417cd03d37982c7386626506753. 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/USL4R2349621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f944839db8517006b465b2144d0f94ee93f5d970592569b36115603c8a0095. 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/USL4R2349622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316b9d06def9af65b6bb5e0a6338673603abbb3d4223ef93459a125e04082b29. 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/PYC842406925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710829ebc2fa12477cef5e3a193340eee675b80adb44b0dc8d09479dcd66f577. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMDA62224937.
PARAGUAY: Mi país, mi orgullo y mi pasión (2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec799600d85730f7fbb3e41ff280936d5a026ed5d3b97e1d7466ba4e3458a50a. 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/PYC842503839.