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 0xf3bd2e136fba1b2b4c2bb9e7d6f4f423c3d9e2ee68665d4421511a212ff9001c. 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/72919edd-a450-41a1-af86-2a4d7da533a9.json and https://artists.proofprofile.net/proofs/artist/72919edd-a450-41a1-af86-2a4d7da533a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
T-Rex Hunting Easter Eggs - Dinosaur Songs
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 0x00b0029533809519d025878d2b0cb962421d5e4b7360a7c2cda8324e95ed15b4. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/AUPT21800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14eb65206c35592e8d7821a0dae074e26dbd6deacf85e7b44158165b67e12445. 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/AUPT21900002.
Indoraptor Song - Jurassic Dinosaur Song
T-Rex Has Big Feet - Tyrannosaurus Rex Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10663bda3d1a3f98af2bba22294994de444284e1541225a97eaed62fd91a517. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:52:11Z), 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/AUPT21800040.
The Snake Song / Snake Slither and Shake
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9be8b2034d6237c2351cfdd2d378fe1669fd0357818b36053c4100da059e78. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:08:09Z), 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/AUPT21900012.
The Giraffe Song / Giraffe Has a Long Neck
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e1557c377797308a1e4c30a87f96d7901513026f2cd0d7e8518e117a1fa23a. 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/AUPT21900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ae0cd8f3284084d542dfb2cce72cbfcd4aea9b559fd438bb3b69270181f827. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/AUPT21800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0d31c75619db77f674a332b443ddb11a3c91788f4497c946dc2d690bf282a7. 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/AUPT21700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d71b8aec57799e77365d1202516b8ad2e8a1c5779c520b1290d8e6c645483a6. 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/AUPT21900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bda134c7e4400282b1611f4c340a1b303b7f70321fd098d18eed641f5b5470. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/AUPT21900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69725eb6bf06f366c60b46c5bdd37b239b341d99b079e7a285572baf4b437a57. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/AUPT21900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a020c9777a431d35439369e87d0160c1bec521ed1e77d766ed6586fa4f1683. 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/AUPT22000338.
I See Fishies In The Deep Swimming Water
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ba491d99c9b48185105ec80f2f57c60b9306cb85d20c4e8608b40b33adbd57. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/AUPT22100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b0c848252c78575fb8c69f8df805a4b038ceab52881bfc4056a4857f1bee5a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/AUPT22100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c21b13f6522dfb3b2a51d47dd0745f6b635acb9c26f5f980a8c112a543a7cd5. 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/AUPT22100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e0a28862063a366bb6fe6e0b39322ea8711fedde949c1917dcf205f5eba5ec. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/AUPT22100172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dd108d6d269a00a01992ab7d1a9026aa10fbd68440eb663f44e2648f1b9966. 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/AUPT22300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade7252f86eb80d6441354357440d41651a3f48969c7fb4ada2dbaf575f64429. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/AUPT22000137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1444c1934999a89baa807d75d8c02df35ad17bbea9ee33df30062e5b5896072. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:00:43Z), 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/AUPT22300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4711f4551ef2fddb2886664dab38b5ea5086ca7307bad2188db29ad9aef424ce. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/AUPT22400002.