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 0xd33b4d03346878cf834a56cc3d562bb68cfe621f254a1618a2e5c891a7ca4a08. 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/d58aa980-5cbc-4adf-9afc-14d02ebe3e53.json and https://artists.proofprofile.net/proofs/artist/d58aa980-5cbc-4adf-9afc-14d02ebe3e53.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 0xc85f5fa76ff148db0e3231b41ca7b79ac01bedddc74d481c1b266277f74dfbdb. 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/TCJPO2158192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93304700d00384adc2a5700adb7671837aac7eeddb0fdd7af9246f07b842bdc0. 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/TCJPR2254034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061d2cb7e5cfe7f0b14450ef1a1a6d4371c7c8b5766720fc3e55bafb615ba456. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPR2254035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1caed56d1d4fb906cb72e5d74d06529a00ecef5a8fad16db436247b24a66033d. 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/TCJPR2254036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc693c0ff6b1f5843ddd0965c184f3bd740c542a9eb70d399ad2765778fc635ba. 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/TCJPR2254039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f42a8f158cc494e13cc6a6b5cbd40bfcb530bde62a60001a3e43ece8a317af3. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPR2254040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02f17d415ebadbe0235904812f6c71cbd9f26eaa0208ea1a73ec9cadb2208a3. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/TCJPR2254042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759e9c869e8f60ed9c440d64697db78e6f6d070535a0a64ef38146269faee8d6. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/TCJPR2254043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4f87375ab227d75cee00f9d322d07dbe085dbfb5e1fa7f9b01cdd0102fc6fc. 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/TCJPR2254045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc13e5df9eb8148e8898e1ea0e2e7879b9043158987b2cd4c2849835cbff8415. 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/TCJPR2254047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d5c1c704394e307a58e9e10ed27ee1934f068de1bec3411551f96db6feae45. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TCJPR2254048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42edce9f9d59c1f130a0f061e4187f8c31e818d96daee111b0c1a9b5d803d975. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/TCJPR2254049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e0b298f6e7ceb08646ac12da380603d10f2b88c06c29812671371cb5876a13. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCJPR2254050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35411a4698fd0bc38d29fe2f80edf2978c632e2e160e00120468285920532c75. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TCJPR2254051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90da90c886b7577d39a990c4a7c8faee820ce74469659034c9f54e34366bcf39. 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/TCJPV2321650.
[NEEDY GIRL OVERDOSE] additional soundtrack
「NEEDY GIRL OVERDOSE」additional soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344bfa59a16bbe41cd7d68e1501d67b27e43e6aafb2533d6ccd638c25da6d64a. 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/TCJPV2380025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057c0f2a2545b786782a59dc89d8264ffdb795887460b6d5070b2b7fb0f35583. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/TCJPV2380026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497d3a641b1d468b07fad59c95608c0ba6794eb295ddcaa84e542c632f2941de. 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/TCJPY2485358.