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 0x043a5f2c4f2888a08e47c7681568098754f5446ce04d099236af18f7c9876b4b. 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/359841f3-c6c5-458b-932a-ce2231917648.json and https://artists.proofprofile.net/proofs/artist/359841f3-c6c5-458b-932a-ce2231917648.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 0x204e758fcc7c88c88de70a175165347ef71437b05b79ff254a035cc236aec523. 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/UST8K1875780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6698ba4dce0cec7a7f4389fdaee478a715c2a35c6469f4445bb3d815481d0a76. 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/US3DF2114495.
Simplemente Amigos (En Vivo Desde El Auditorio Telmex)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2e1ba9599cbbda4c2dc961a2d26a7e8b36eb2729755b1b0ba65a6ab0e60075. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USANG2275417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91abca70cfef98acb7028ff3ffacb9e4be030a7483a5a4c341bdcbae3252bce1. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:35:01Z), 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/QM3DF2257728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26546ab08a77284b8415d3f73891e06c54a8a2db788ed84e74cd91d61191931. 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/QM3DF2266191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9725d9e2efdfc34cf7b3c54f16f1810e5955e40d6431c435393160836828575. 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/QMANG2215395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc138488683479d74729e1965af125a12d3371b81bf03c525b36c1dcd083d00fd. 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/QZDQH2410249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071007acb07002b2dce06b6452bdd826032248eb4d63cdfcb3c940c1d138d019. 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/QZDQH2410252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e16577baadde99a4da9f0cfe5d4cd26701a7cbbab7fa70c619210ab80ae8ceb. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZDQH2413831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24f32240cdc160b3134afb40fcc5384c9e4a7ba394be067b4ae61101741199e. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZDQH2413830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2ef0027e4b80ec2228f38be0a4f6d041446fd3460b6c156e6e47497f712783. 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/QZDQH2419478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d45310c50c0815dcff6794040e72e480dd1d58d1aa3403c9f6387e98f20e600. 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/QZDQH2437086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabb740bb6c307464ea81b233e1b409b142ba390bc769683b1bcdc238d7e4b86. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BK4DA2464817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5077aa990295dc1ee5a4cdbb46418e7da540dc4b0338369797f181f9d8f1622a. 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/BK4DA2464820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280f62220eb35d566e2140a488574c494f60c1946d2e5db0c2584e5cee9b1247. 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/BK4DA2500283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ad9441127597d23ed775a4776c3ffb6c7a9884410db53d3a366f321bfecb26. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BK4DA2530485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f0c7e44bda5b389ccf55860aa2da45b3beaa10262e20095d03d94f12cb438d. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BK4DA2530486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314eebdacfeedbd627ee13f536c5e06714294f3f150a539f62f04dd5a9552879. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/BK4DA2530487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8bf5e19327c65a04c478420625bce269fd2c0160bf0d078d7a1ddd64eed91a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BK4DA2530488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb017aa053d428c3bcd9eb05876b98c720201d6cea9662670497edca82606d4. 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/BK4DA2530489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a2812fae626a611ddc9e66a36239b35b64a9c7fbbac3e16482e2251c45f189. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/BK4DA2530492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa359c09010ce5e4f8d3293b54b1038f07bdae4c85bd801f42620a28c03728578. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/BK4DA2530494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0639fa5f943c165185a1d97de60801ab7569a231f3dbb104f10055ae20dadf9d. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/BK4DA2530495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c43c79f70f1eaf6b87bbcd47b1afc3d5a73207a1e4b43c2d06d477cf50feba. 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/QMANG2216386.