Problem child may refer to a child who is particularly difficult to raise or educate, especially due to disruptive or antisocial behavior. Film, television and theatre Problem Child (film), a 1990 c
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 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 0x6ec5e7918e56fff57f37bb1fd60fb22a40b326f30485194c0e95b9373753d94d. 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/abc9f2cd-e43b-4148-9b35-4446af402c29.json and https://artists.proofprofile.net/proofs/artist/abc9f2cd-e43b-4148-9b35-4446af402c29.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Stiff Drink: St. Vincent & The Grenadines Carnival Soca 2014
A Stiff Drink (Joli Rouge Sound Remixes)
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 0xd7eb105843ca3fff82850d7dca2a3bc00bbb1cbb7496ea3d42cd8cf4c08c693d. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QMR6Z1800023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf328e346c7a343dfa7f8026cf227bdcf9aac410b63e28bfba53231cada16e816. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMRTJ1900320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c633118c65c874beed2987afc86b3b3f2832665de43d1780f3a775cbd807134. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCADP1851495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd007747431353412101c74626f514fa8e1545a7a4f34a24a68553630da7507ee. 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/QMRTJ1901083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed5a1f721c48b618f43b09a4fa3b7d56b48fbc9c38f88ce55958c83a70b7f10. 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/QMRTJ2000650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75362b0c25f0c7b63d18cd84da3123e3827e66ef4e1a3cff4177d046ac5c5a5. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QMRTJ2000651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20414d7317656eff54dc8df103691d2bf4781843ac267ce6cf304778965354fe. 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/QMRTJ2000655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31038e44889c3ae5c3754fa951c0884130051ab7b55f03670f9492a8bdee15fb. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QMRTJ2000658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7996c6c3691f10f75a0d8dd08e182b2d043fb8ffc73e518a3d25cf7717082c1. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QMRTJ2000664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9229bcfa0cbf17d3fb969848198db7630332dd057f8e5b32e25078b834baef. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USUYG1374624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cc50a2f4f143ad0c55fd72772ce9d1383fcbb39817cc98b73f85627760cb91. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/QMRTJ2101116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04ca9563a5e2351a8b8378f310312d44cd33ba0cd91c8caada7b117dd547954. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QMRTJ2200263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e71fa7bc1ca1495bbb128953a41bcc6615b1d3d8fa84472818b2f211ba15e26. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZWV32321400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01da738469ffbad5aaf92c173b2b55eb51227c55f0aafecd385e2577e076963. 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/QMRTJ2400200.
Panival Jumbie (Carnival Jumbie Steel Pan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c7254ba98c9140474f5e3ecf6068dd5306d5bde59416b672f0607ccc92f163. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZ5FN2534866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffa0c1d1ed49e22293325990a479399fec02949cb866f99837b713d9477bcc5. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/QMRTJ2500123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8db262aabb7bfa1c9e3d6126f3b8a551982db0f48a7b0c71cbd50c617faea06. 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/QZSTP2500452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c06306cfda4302f5f287e5281ce6b3a16437c4ccae113ac56a1999ffa38a94. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZNJW2325399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6bd5e5f6b1716e1072d8249bb6157174fb42892bfbcb1371b5b1598c7b6037. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ZBF682400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7ce76a8147bee1cc1c2b3f88d531116360c5783d8b134e954b62e71e85c9cf. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QMRTJ2400280.