REDIRECT Attention deficit hyperactivity disorder
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 0xa83e09e107ada7ee76e3e0df2092aea3664636764adc27f3b8dfdfe601327bbc. 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/2a0bf7d4-5672-4025-8c21-4ae0dfcf5e49.json and https://artists.proofprofile.net/proofs/artist/2a0bf7d4-5672-4025-8c21-4ae0dfcf5e49.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 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 0xaa730d408964a9901333cd6152a89eb9084243588ab3e80b257ba52ebe10a803. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKLFP1663452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa79e45ddbbd37d98e6dba81cfe8de14c154606342618e79cb29f19d69fa68e0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKUM72000784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063c1127d3a202a5bef419fe89a8c5130bbef38ea0cac759bc2ec6a41dee16db. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKUM71800766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576bee99cc60c59e3b71b70c20085634f709cdd1cf72e8e3e545ad13512d5866. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DKUM71600201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bab0d2b0cb24ba63a649e61e6afc28e0232906c90cccdea74b72156ecd15c38. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKUM71600113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a1f42e5a7db6aea3a18ab69267a232155ecf804f80096fdfdd72f0756e8755. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKUM71800229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a45a213c50a87ee0afb78a0710b99d70a8a5b6bc7f23e25d49fa382b0daef5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKUM71900130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05833a6ec7954c31519bc621f7623c950e5c27e9b994aa1e0fea241da535d7a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DKFD52642004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfde9a70595f977411686a9c4fb898cc0028c277809d1fb84a89270c36e40d96. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKUM71700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c11ba3e63fcb154e1a9163996605056117cc637b085553c6c890717697be7d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKUM71700497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a1d59df90c653c95ab4afe6b158225c47fefb6f86dc2199dc0e646100ea001. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKUM71900132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c9e3b08c4b5b69fa0fd4759b3baee8d83cb0e45c4beedea74aa31edfd55276. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKJ8E2400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfebf60e7c6e4e76c2fa8822113febab8d6a0446b3735b7da0d18b15dc28050. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US38Y2404204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3631672878aac7a1be9a4de636abf9ee2d24bd9c2b88199febba1b24ad088bbb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKD4H2400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef654d34decd72442577ac82a0d839644fa4d858799dc46989403a4d11bcb9a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKJ8E2300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7580467900b6a00cb954d34d4a61b973ad7025abcf834f2228addbdf42b6ebeb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZWFM2371917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e967ddbc7aa1531ad79b00d6ab4409f6840320bc128a1171805d24e4bd32fa6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DK2DY2200203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5c2a339c0d5adf4230ae2a1cc912e35454895bca968b3b30fa53b5d1bb9949. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKUM72100659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c0d3f923d5b3482e187eeba109c3adcde3ac5fbc93b7186260e06152a06af9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKUM72100577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf838298230b22dab8a71c492c39e17f06f8e73a707fb656dbaa23ba43b647b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKUM72100578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69831f6a21cf35a0a68cca455dff23ff70f072d7f038211f1c1f0482ea35e513. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKUM72100342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c088af037e176bd15685f6b5d8bfa43b83f19adb907a28d665986511ad23c4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKUM72100294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec38334da63a3196ea2ecfff7c7ae47c4e46fadac3269f374aae51acf7ce82b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKUM72100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d1f6e72214d903b6228afc78144e79e961b0dc822dc07c387f446e64546618. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DKUM72000836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbc5b05fb91702df16c37bd807b72d75cd66897e470f3780fcb6b94c21566a4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKUM72000437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678b7e099e2a9fde9c6d9aa606b293c4e9fdc56697eb9cc13dfe9eee76c3455d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKUM72000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb51058f38b3ff0e823a031102ad980b4b212a93805a7d442930bfc4cea3cb6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DKUM71900297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf926d75a27059a4bb2e3669871cfe8a086e0393d6edf0191557c5fd12e283455. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZES61987268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b889817526d22df31ff2bcdb36715d7aafdd7e913e860ab317e9fdf7a1294d4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HMK401400234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0055265ce63af44dc9f906419e8b1418ad57bbfacc0d0e3e0d674f2ca0e7c25b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKUM71600163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a2120dd8bfe56c3e1a63a0e1654ce9c49b67336d7168b5b9b608b0e8e6702a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKFD52642006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26450c75e263bd8c5c96e1d2355e5f1f8b59ad45062a899785c1cf76e55164b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKFD52642005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef620738755266aa613df33f3d2c27f9ce75375dfb9179e7cfccc3f916c99a84. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZFZ32478290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424a0a2ccb247fe310cebe6583815dddd5d47ac2705631d23de416bf611e9d2c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKUM71600401.