A pyrrhic (; pyrrichios, from πυρρίχη pyrrichē) is a metrical foot used in formal poetry. It consists of two unaccented, short syllables. It is also known as a dibrach. In classical Greek poetry Al
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 0xb6f635193485056361362ec25ce96cbe880b0049153ac745ccafd5e5fcc5e7fc. 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/fc764ebc-492b-411f-bf84-5b341d7f7648.json and https://artists.proofprofile.net/proofs/artist/fc764ebc-492b-411f-bf84-5b341d7f7648.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 0x9f7f7d2729981e864418a90e75c2ff371844931b81e6ad6c4d9b3e32b9feacfd. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:20:14Z), 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/QZFZ52087609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee0b44629e6131af6e036a66eb089336e18403e3576e5d9ef1f47e657ca25c0. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZHN72086797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16762c382a8ea326b3d106a2a4b29387e12b042f47c86867216df0dd41987dc8. 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/QZHNA2016686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5f1215e68b4287b06dee31299946d921b313216314bf18d710802759d0b940. 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/QZK6N2028359.
Loner (Murder/Suicide Pt. 2) [feat. sinna]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e42b52b586aa5b662367f7773463fdad309f9bf4be6fb637f7bb33e5d2d099. 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/QZFYZ2196014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb575d2d56279997f6be10f475b78022c761377a7203b3522283f7049eee53b5f. 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/QZHN32141979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09719cee6fc8534d481f30076596d80e459e3d6bae1e3161e6565314fc97635c. 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/QZMHK2204055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f52ac5efbc1a9dcb9b2b5a15fb72b335263ef308ceb2f42dd49fb5235f330f8. 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/QZVEM2308168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fff0515efff55b8f78203ce0248396d7b9f9df242847427ed837f72cd422ad6. 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/QZPLS2385083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd4b684f555ceffa80036314393b35827f92fdb489c9801bfe68ac8435d4292. 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/QZVEM2347593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058ee51f3f1a1c2242e4d28e7431be2a7e9050e3c304b370f651086f159c9d3c. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:28:51Z), 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/TLVEM2473688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed55a896a635285b9ec9a9856f2043e29770cb1c7905192506ebd0fe7d5fd81c. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZHNB2581001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c7d249d926069540c71518a55a318f2831e3226451683d6138a4ee6729a789. 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/QZHNB2504581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd4b684f555ceffa80036314393b35827f92fdb489c9801bfe68ac8435d4292. 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/QZVEM2347593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e7a4d99c63f13f39e60894efd718354a6493190546ae7aae62b491ba2e6d2a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:07:34Z), 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/QZES52394517.