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 0x10edfaad0b5364ed45a80f0a192041b4659d620a073cb9d32f8da4f2ca3f2d5d. 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/3f5064ee-95f2-4451-9a0b-0d1b6d4387ec.json and https://artists.proofprofile.net/proofs/artist/3f5064ee-95f2-4451-9a0b-0d1b6d4387ec.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 0x200ab9ff3b7bb409f5678f2e425e52bb19e769db9a3514ea55e4ffd6836ee167. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTAW2321945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e55df411114c89e06081d37f3e0583838915f73c9cc17ed92b3290f7c8f5399. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZWFP2393293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aef42779e87b655225ddd5ba56469f195fd02df3b9af600875985cd56b943d3. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QZNWR2439396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecbff575e951d5a04595ad79367f3173b6a40ef25b6c295125c398bcd180283. 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/QZWFL2412533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d517c7f217cdad254fbc6b5cde5f8bba02c46cb0156fa4878dbb45fe0a8e132. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZWFQ2499435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafad1f3e42004991fcc0ea698b19802fbcd4c119e68d5432d336f479ba27db57. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZZ772465124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bcb55645b84399ed8ab9ccec72d1749b422c926d39bcfa01b8fb0ae621d2694. 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/QZHN82537535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c75623608c21ebb1832e671acfaa881b948f2d21f4658834ed4a5702d8f9755. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/SE5BU2589551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049848600848e255a58c05121983b24323ceeb97b5ab4e697b28203245f2d410. 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/SE6XY2508241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447abb7c90c68f879b1567de16e1f5522b2eb384aeb6f22fe7ffef2d92f6408d. 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/SE6XY2515715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff5bf60650f057e37926ce063211e807c02fdcfc487e9d7b66e0ffa629b32a4. 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/QZK6K2561699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab9bf0cd1c7f007f99ae16905d99eeb26fb92b4ef92cbb47f6cdfbe6f009439. 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/QZK6K2561700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1abe5be1f7b9371df0e55caa1a1e5d413f2ed971cc8d9d699d491756904e732. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZK6K2561702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6d5055e8843b4f69009edbb8c38910e395df65dd991ed074ee5ee3e1ae240e. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/QZK6K2561706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760955bcf28e2a342424d83448983ff79bb867679ec0fb6ba31b3fd7f2f41ae5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZK6K2561708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa44a58e932856b601303aebd44819e1fc02873ae83a6ff187c848cd4a27fa2. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/SE6XY2515818.
AFD ALBUM 2 ODER SO (ZENSIERT, IMMERNOCH RECHTS !!!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0e22488417ad7faa497d026ebc3a35f6e18579d6ce2da179a811310608d759. 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/QZTBE2532962.