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 0xa0eb38b6deb57fa33912ed74ecd5c9c32cb63df8446a3672111d48e87e4e0925. 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/1693e592-d34c-45f3-958c-803e10032975.json and https://artists.proofprofile.net/proofs/artist/1693e592-d34c-45f3-958c-803e10032975.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Forsberg und der Teufel von Björlanda - Teil 001
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 0x2021c5eed31ecd00e94d0b53b17656ff308bb8093959e8c6d789763788e19cb4. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72308333 — a six-check JSON result.
Forsberg und der Teufel von Björlanda - Teil 062
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533b560845b750b1fadba00dd14908651883f2faa5cc4b6ec7806d826003519f. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72308394 — a six-check JSON result.
Forsberg und der Teufel von Björlanda - Teil 149
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe820641433dfbb791de09bb2f83bccbbd20d3a11e66aac24f7f75b70b17e003a. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72308481 — a six-check JSON result.
Forsberg und der Teufel von Björlanda - Teil 151
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82203339d04db5a927d30a1c37b4dc738dfb13548f43f9f8c87a8168cc78f735. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72308483 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan
Forsberg und die Schatten von Trollhättan - Teil 003
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8889e99c6e206f1f419d99d95c982129eb47022c6907c68e1914a96ab3c0aa92. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409393 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 005
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9084ac6707e5a4a8c1de1725e01ec9ab3194a62308759a7c06d3161b6de6329c. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409395 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 006
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffff9b67c464b69e694fce0def62313c0ba293315c7ab21208e225c37fbb1f24. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409396 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 007
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e100102f65ffc87f38c670bc93d015a9e5ed00c4d3718bc560a956a363a5450. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409397 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 010
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d629b0862e6ea7ceb0c2a98162a8c5dd2a2fb671aa646165a9d02b4c2bb261. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409400 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4388377914edbc0ed504f8d3d48915d2157b6ab49879cc89b017f613dda881d1. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409402 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 013
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355a52560e9520a5b5f0916d80767d8f73c897e1a762363d571d1641cd838a7e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409403 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6cb8d370c02c8dab4906e29b2fdb582eb4a2d29ccfd4be0362a1d73b33d626. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409406 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1802f774f2bbd7e968d539504972e560b8bc5d8d39f0dada8d98c9a1fc3f1c8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409407 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4c96166ff1a5ca03189b3916dac7fbd2ce30a74c4d0ebfc1eae6b57862af05. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409411 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 027
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf942df0633a6c122beaa99724f435c0f6fd479bf7cb7fbf39111469407eea43. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409417 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 028
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07950dc206539e3e8b3c805d3b074eda10cd80fa167e875e833c3f8e89a70592. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409418 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 029
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eeb8f0778db93d3c0ef11569a6c41b8152a0a2cd10916a43f238c14d52601df. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409419 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 030
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ef4f701af21bb1311fb02b43974b500d708a03f401a7242cd27c110aa07f0c. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409420 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 038
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd006719fe8fda6e1aca5c445db25c2469a1adb8d63c856123934769ead0f86bd. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409428 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 040
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdba0d654825ccc888b01a44f52e1556faaaac0ec3ea71dcddd9698e87a225e. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409430 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 043
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649bf3e6d254afc4bc856aefc8e1a39fa2a1b1f6eb1bfa0b78bda9cd393b19cf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409433 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 046
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb666c9546efca039a0f5dd552ea50e29159c790a75be18f6d9600f1336d9426c. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409436 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 047
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177d9a043a5d14af3b15172de723440ef7988426d21774f0aa0f0bf24a18240f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409437 — a six-check JSON result.
Forsberg und die Schatten von Trollhättan - Teil 072
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877b54a7464906b885e7cb1cfb7d278a822f0bdefb9bd7d3bde389a4a003f391. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUM72409471 — a six-check JSON result.