Nerf Herder is an American rock band from Santa Barbara, California, formed in 1994 by Parry Gripp (vocals, guitar), Charlie Dennis (bass) and Steve Sherlock (drums). They describe themselves as a "ge
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 0x72db3812f4085747e8341ebf6d0e70cf460921bc44f384fa7ae765b04be0692c. 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/3e60c9ed-7633-4bf1-acc9-7230d697e578.json and https://artists.proofprofile.net/proofs/artist/3e60c9ed-7633-4bf1-acc9-7230d697e578.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 0xfada28eca50a0584642375e74372605b1066d64fb6046e2beb59e49e77982d26. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USAR19600247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7033ad1150454845b6b7c057ea50c4880d48fbd3219cead2f8a4c92ba96165d2. 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/USAR19600249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd868a6915a5fc90b5f56687f73067625565fcd19012d9da9ca26d6c31139a2c2. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), 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/USAR19600251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da967b1c7187316949cc549212d36f7ca6bf63ea30049df86182c8a60d19f45. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USAR19600253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a55a342d108ff113e314452232ad8915a905f54de38e4dee01ad54ef5af487c. 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/USAR19600254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342fcd45bfc9451ed45ecd81c99eb98f61260d46b04b85e3a67fcd888c0dad96. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:36:25Z), 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/USAR19600255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c52b687035beb804ed97fb8c9ff696c1ee2c52000329be2226d5539d1709d14. 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/USAR19600250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441dbf03b88e8aaff85992c0fe3b5fc740033af6de33d7c188ec9f5edd00c3f9. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USFW40502707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5067ed5da447cd12edde14c9d2cafd5d553e105ac8cb7326d7f89b3a9cf0908e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:49:35Z), 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/USFW40502708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c4e71881d3315f505057b6bd1aa8025e9c0a261952405059241715285ae5db. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USFW40502709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80439f4f9ce601f02d635a1be0a12411af15ce5c7efdaacba33e920704b4e2bf. 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/USFW40502710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57c2de3ab4b8d9d4f54d40a0a8000d9d6835ce7fd95da6541ec0a05f02438b3. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USFW40504501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b749072c8e60a581f7963b69e3fc0736e933e6cf9ad225a9390ef8b805e12a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USFW40504502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f3697899bd1949753e8c9a841a1b39e70a5b15c37329de233208412d6a7d69. 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/USFW40504503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf0a57616232bca43be36340520c840cff6b0b14e8f258ce72e4b30690475eb. 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/USFW40504504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4bd8798ba9bfe59019a12a6c193b726d2c6b8e979b31ed4ba391da3f885559. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USFW40504506.
Fight For Your Right To Masturbate (Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5009c8ab1b84f99a4892ade4644e64d9e0478ac418aa2ab2e7dfa3b2ceb2a3ba. 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/USFW40504507.
I Want To Take You Out For Ice Cream (Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6050d99a8d78ac77c6d5870ab362477eaccf5826a94bf6e4c16a9fe19c7888f. 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/USFW40504508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa401e9b5aa5df829ca86c1bbcd68b9e0bae000156340731bf5cd5a7a3ea029d4. 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/USFW40504509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ded8a1801476602ccbd04fca8427549797d321e51c0326b93c3c8ef2047dcd. 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/USOEG0884801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc64f1c7cf2dc0f99da898412f8c137a39e3ede728023f81f5f5779852e9f7d. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:56:17Z), 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/USOEG0884803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c786c6d1e11a5f0bf60855c16240ba547bdee5a8645233bfa8926d1da3d29d. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:53:42Z), 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/USOEG0884804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfd6e183f1abc523a3f3ddb769ada25ca90ae22b48f16a3c7cf0adab343dc1f. 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/USOEG0884807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb012c127fe91371589731ffaa0e83a136a203263c03c73fd378de189f57ab871. 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/USOEG0884808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe400a7c3669eb7f84f7fbab15ceea97550c4db22477e444618e370ec0a43c634. 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/USOEG0884811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbaef2ebbdd31a1211d8b9cbc9e960dffa8fdcabf41a12f01682bad6872cce7. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCACM1614739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff790f1c0c10a68b62133973130570da710396dcf24d559d1fef9d027af6c12d. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/TCACM1614740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75666ce0f24b3594f8217c9be0b790f2ccc04787268174bb356a03cd0093ead. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/TCACM1614741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d5245afd71d28284f270ba9482036464336f35c7168c7b74d097e1620e542c. 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/TCACM1614745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89977d33b58815bd90485dd5a4228fee0a35311933a7b4b86afd99688704234. 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/TCACM1614746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8575b7af95c221b25829ffa9a252048407d57cd475a0659e2be9b63edc5bd7f7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCACM1614747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4b95881a2db14bee3968fc11ad802f8b25a2cd3ddacedd6100a77667a244c8. 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/TCAED1956965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a65bf9cf2eb70bb7c13b26a34037282fe00cabfb18c061c099a4a132bdee31. 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/TCAGB2226644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f43016fb2fe37b9cf6974fe86f5781008d1e66826ee856fed3b8f9d7493fd01. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:34:09Z), 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/USFW42215202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dc137f7159585d2ee2944cfff6a72d937c8be05c7596a6c00f5d9006ef07e8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:08:23Z), 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/USFW42215203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349b9edd7be3e8a185b2f888df37a7c3efd9e6860eca59cd9667662051440203. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/USFW42215205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7a7b16a6d9f6a8d0f90069d898ff4181a1b4a34270d15b4a810c0beb14f11a. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:35:26Z), 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/USFW42215206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e41b2f0c8808847f1645ccfb1132ab5de06b7152c3c3b72887501f8979e38b6. 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/USFW42215207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7254cb679f7bbd74206a6918193d4536fd39abb33dca7b56eb99903e2b194f88. 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/USFW42215208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d8331887a550e87d91da54de4844c7c33ad60d46419f57daa880fc457d1b6d. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:09:20Z), 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/USFW42215209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73f144177604186a32fc3134b54fbc6d92bb080e06fa9ff65e704adcf10c402. 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/USFW42215210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b71b9cae6f4af144ab9d6d201b52c7717e62ba5775f19f1dccbb9087c24e29. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:40:54Z), 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/USFW42215211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef39013cf73c23f7beed35ebdebeca9cd5c1820934978d3b70d880560474b434. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USFW42215212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ed85a4094649cdb94f9250fb1d65b1ef81848e09c2f5bacb3564450988ba77. 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/US25T0410257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9cf6e2da56686029237b613b2a0fe0b3ef39ec6c4f2e7bcf3fda1732eacb46. 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/TCAEQ2065592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f4ce0fdae7e206fa22e1005051981b6ab9b68248406ac42dc1791e3a07b97d. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USKFR0400454.
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