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 0x81429bb226ffef7fc56cffdf811b0d7fb81e3fed2533f4b77537ae81ba3352da. 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/6977399a-47bb-48b0-adfa-23491995f4c1.json and https://artists.proofprofile.net/proofs/artist/6977399a-47bb-48b0-adfa-23491995f4c1.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 0xe4ab9b3b9e9eadd7d5654b755afc0c138c680a905fc0a0cdc55357dd5ae9b417. 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/US6DR0901440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc708c350f91e1e1ae7b23c453eb6c875d662bb56f8c572d8be39b8bc30a64180. 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/US6DR1401931.
Sultan Stomp (feat. Inner Forest) - Drumspyder remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2421e797d1f897ad548becaab53d4df222dd6ec6b851861fed6c779edc6ffc2d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/CA5KR1510598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852537f2406a48642f23970bdd6366d0a2840ea97835a492c770f8d059331c60. 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/CA5KR1516959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb95650c7a9b1a80d33dfda1fa93c6e9f5a6b8cd11caf37d00502e2d659d5b25. 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/CA5KR1516960.
The One (feat. Alex Grey and Joaqopelli) - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e56843b1bea125e15af46475f76426bb6982be0473fe04622ddf3a6ff89026e. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/CA5KR1516961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bb9b10bc54a33e62ce79087811c65aff84991bd85f8c0a510497633fbf7bfd. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/CA5KR1826258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5758fcd301c85673c0a1d822df0c377f3928134e8ea088ce8a41973f7e62c6c. 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/CA5KR1826260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa777ad0a695c9a13b4f1bde1fef42db0fe1a76e92989f6ef3027b4e1e1886105. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/GBWUL1904662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26a7582c5f8c0cebdbf2550b2b184d6549b9a7afcddfe26d7fb8537eeb9b9a4. 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/GBWUL1904667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274dde3a0263fd4db2bd59174497a2e2cc6ce967d1742bbabd678bea27bd16da. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/GBWUL1904661.
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 0x8e6e08bc316376b262d8741723bed1772b80cc1f07ccce6c53e8f297fa72fdd4. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/GBWUL1904663.
Primal - Zebbler Encanti Experience Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138bc5fa345697ef38e4350b17b9b9109021d34efc50703f04bf777ad6064890. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBWUL1904664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cd3807f5778dc3b87ccbd29f66cfd3552543420d148a72921b134e82b703f0. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBWUL1904665.
Sirens (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9f6702805982a0a7b76280315dd9df929f97c97217157d8c23bf258d99c275. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA5KR2156674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39845dfdb60627fd8b8a0356d1d9acba09d6b77af0fbd19e95568862fa9acd4. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/CA5KR2156675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2af5f6c20965bd647fa41bc5c5730eca1e1b8d5aaf23f4b6b834d2d0a7d1f94. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:40:59Z), 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/CA5KR2300507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3172e0787b586c98bb3ba57e938cc6bd94edfdd0004d56ca5131af2adb083884. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:56:52Z), 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/CA5KR2328906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3820212d733561bd7649628a14267b92f9f0e9e0c9a4d87563f121afd7c9942c. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/CA5KR2394467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112d2687387da336912e9565107425097072ffb99ea6710f5d0dc4b5280627bf. 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/CA5KR2394468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c789d5c003cfd8833dc3b1c29158c82396cce1ff1b4785e4fb112b53131dddf. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/CA5KR2394469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ebb6cc9579bc7043ff83ec8cd12cec6af360494b34bc249d4ad2e846d31d57. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:36:53Z), 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/CA5KR2394471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37522448bd2c91a4831b34841ce5f309703bfede8c0ed51d31b0eec52d6ee3cb. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/CA5KR2435914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a29179772965d221fe1ea2658960f958c4e0927e2ebf51f500a8177bc745024. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:53:23Z), 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/CA5KR2482317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016bbbf90b50e1e2db44e15474b406420ee48ddad1d67adb4ac1ed4e8cca8de7. 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/CA5KR2509008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c25ebd91fb8e496c7de8b198be4f1371aafb13a4b24c7d0540294e64164280. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CA5KR2509009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea868d37d71b478e1070b1b817e70d4ca85e866fa00625ca0cca1581f9f36d64. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/CA5KR2509010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f71a1d939d9f2661b65fbf38a6eac5300a93018a45a9a31453695ccb8b5e900. 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/CA5KR2532291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9a1e7e6333634ae218be5025b739c3ec23a160db4f1aed0c7a281b24649cf3. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/CA5KR2529463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488be8c58d8dc5adcb3f755ece059798b0c2351d8d2c98262cee1ea54516c1c9. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:16:49Z), 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/CA5KR2534543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb4b8650d78ef8063adc1be575f2c514cdd0b8a47c8cdc0ea8f6c087e12a6ce. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CA5KR2535682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0bd6d7b159156cbd823d5be0d2c98059728accfab56c41461df84b1b5e9ac1. 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/CA5KR2531059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f71a1d939d9f2661b65fbf38a6eac5300a93018a45a9a31453695ccb8b5e900. 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/CA5KR2532291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf212db6f167b0604734c9facf6973f0b6de69f4f24678c637e34c6b042a69fb. 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/USBEB1610008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1873e4240d6f342197aad6b3e2b9bf90bd998e6e813cbe33d6c72609c5e61c7a. 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/GBKQU1785114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7005e6c8b6a7cda78e1713c769de0b644564e1a243ab2ed4ed205cb3850ad52e. 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/GBLV61503486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf779807d0875df085a26eea60b61ab075f5a1436f2443b12aed6aa44914ac2. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USQY51763456.