1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc6f13c1edb2bea6bd46a87c23b90d2951f45d64217d4aae189def686091b80a1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ee43293-864a-4039-a955-dedd2dbcbf87.json and https://artists.proofprofile.net/proofs/artist/9ee43293-864a-4039-a955-dedd2dbcbf87.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 → block OTSBitcoinBlock must exist at that height 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 0xe24b88984844b3ff62960feb1c9c70b53f5289a6442d363af54ab4eb8a398643. 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/SE6XY2285230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4ef242963958b2b9ca55198c03bc084be21286e4be93164a0bba92b98d3e73. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/SE6XY2285130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5c34e2e274d5ae57071ca62b0c6f3686f569d5d69bb67b5c38e09bf10a2da1. 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/SE6XY2285471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1994c0a28f84c15cc7707ac425f16ba21648381b9a9d5601e0b741b467e846b. 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/SE6XY2285070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1994c0a28f84c15cc7707ac425f16ba21648381b9a9d5601e0b741b467e846b. 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/SE6XY2285070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709054f67f229d349451ea218b7ff310ac5d5ac750506210c4c59060c27c4872. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE6XY2285072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfebefd4b33bd7277373ab58788b9bfe21511920cfededb973468de1efc2a483. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/SE62M2265166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8628d1ae77f51f49de684de171e4552bb41651fc27864c27146cd029ca1449. 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/SE5BU2257128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8628d1ae77f51f49de684de171e4552bb41651fc27864c27146cd029ca1449. 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/SE5BU2257128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541f74dcb16093c08cfa9d59b0bddbe00205ecb38ed4beaa073614f453e0a566. 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/SE5752370653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb65d526d79387adf7e6fb4019e3f4cf939cf31a5911ec3490bf9d84bc29a5d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE6HN2372228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa272614c4c77eb45908521ac8b93cef50182e4ad2cda611f9693ddf4525032ba. 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/SE6XY2307145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40403bbf0c61b83f445d7512164a558abe4221ad2c8e9250dc798ba385594e89. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/SE6TI2319609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18441c770da27d00c8fa1dc8e8bfb2159131364201c5b23030d49858704ffd3a. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:04:09Z), 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/SE6XW2302954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc0e59181988f242f6fc8b252acf6352f32c709469ae1de0d897e746aba5b27. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:41:51Z), 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/SE6QE2396321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8e1877d2017b6b20c6eefc098e3b5016493cdfd0711778ab6a594c41cf691d. 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/SE62M2366786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531c4ef875826f8e69e427b21e5709d1aac97f74de819ea22a4d45850b1be9fa. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/SE6A92393184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fbf2289f8791a81ab056a39772bfd8950c4bdbf638c9f9747841fe23103362. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:47:27Z), 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/GBMJG2430413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedde0c8469572f88941a01940642bd5cfdf5d4243e8b7dd9f016efb8f4045df9. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/GBMJG2430418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5ce9a091ea9446520d24b6a6e93bbbc073b22b216a394d9635d2899cc871e8. 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/GBMJG2435885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbc0255b4bf8596bf17e0bfeca64b0decab71d3d41a76cec22b51cf49b118c7. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBMJG2501576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf7c13ddbb1a4f549e9a97072e7eac6e4d1587901a907bca2fdc326de04a19b. 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/GBMJG2503040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37b649af4283515aa6bcb208fc3214b48c04ff766f42c2d58efe16a1cfb173c. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GBMJG2509188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85154ad353dfbfb443ee39617945465e7664e9d9d535bfb781836c20da8a9f8a. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/GBMJG2509189.