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 0xb5c89cc56074207aa1c28be4f7ef624cade13be2f97e0f43ab70925acb3daa03. 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/3cebf248-8b15-45e0-81fe-361f274f10ea.json and https://artists.proofprofile.net/proofs/artist/3cebf248-8b15-45e0-81fe-361f274f10ea.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Kapitel 1.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
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 0x00e92c4e3918ee42034b6d7dd6c1633ca656ad945eb3e02188566cab1066b080. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXR12381768 — a six-check JSON result.
Kapitel 1.2 & Kapitel 2.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe316942d932f491cd17e439f5e474452169e7b3b543c7bba660816bc197cbc42. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXR12381769 — a six-check JSON result.
Kapitel 2.2 & Kapitel 3.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ee898dd3d57a8d0ab116963498773d99d474c545c21215886e5271c26deace. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXR12381770 — a six-check JSON result.
Kapitel 3.2 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cd9ff7674b9adc60bc285b5fd988b018edbd471a5de34f8604070f4573fbe1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEXR12381771 — a six-check JSON result.
Kapitel 3.3 & Kapitel 4.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24af643bcd310049b0aaa9d249342cf504a5d439c9c8ab4cbaf05c08cd614347. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEXR12381772 — a six-check JSON result.
Kapitel 4.2 & Kapitel 5.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1850e38543b6d1687ae4b8fac968a9a2c4deedd148e2bf1ac67175caacc74fba. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEXR12381773 — a six-check JSON result.
Kapitel 5.2 & Kapitel 6.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fcfa14561883d1be8e3dcab1651c95940cec1120b6f6ed1d418c702b6670fa. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXR12381774 — a six-check JSON result.
Kapitel 6.2 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a69c633bff7f5a11aa840143fed0dbbb953df25600564c3c3b72bac89ef466e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXR12381775 — a six-check JSON result.
Kapitel 6.3 & Kapitel 7.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa406cc719d6e72e8136355d4df47a0ce792c2e68fc9d52e70098493a181b5595. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXR12381776 — a six-check JSON result.
Kapitel 7.2 & Kapitel 8.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562c5b3f8774485eb12fddee52ac4c7e0b0c6b95eceb8aae97dcd95f9ab02bb3. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/DEXR12381777 — a six-check JSON result.
Kapitel 8.2 & Kapitel 9.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf831233a6527cca7f703b588a10f74db42d9c28ff1e3f0322f7bbfb8212b9cb5. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/DEXR12381778 — a six-check JSON result.
Kapitel 9.2 & Kapitel 10.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11af49ed681ece4912313e64ee295987334d1ddffc617fe801df93b29dfffffd. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/DEXR12381779 — a six-check JSON result.
Kapitel 10.2 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4769ae2869f629f4d9be58d528ab3a207a59e5f0c4c11302bc020bc2dc8da5. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/DEXR12381780 — a six-check JSON result.
Kapitel 10.3 & Kapitel 11.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38087aa7ad457e5699496744761bb5e2cc8abf25f7818e53392a42d4bf79c7a5. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/DEXR12381781 — a six-check JSON result.
Kapitel 11.2 & Kapitel 12.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d143655f6a1fd27e62cf38743b14dbe6fdb31e4123dfa0c3f45b70c37a1e407. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEXR12381782 — a six-check JSON result.
Kapitel 12.2 & Kapitel 13.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a98c14bf5a443fd9db3801a2a6e4402e93f14bfc3f32c1ee33caaa487dc2a62. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXR12381783 — a six-check JSON result.
Kapitel 13.2 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e28520265b74062da49b7a2683f8354eb9a7d59d68c35796a598285b95f7dc. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXR12381784 — a six-check JSON result.
Kapitel 13.3 & Kapitel 14.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddac2a044bc8b039353a87f5630b1d30cd6a669127e7a92e56ec16fdcf4829f. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEXR12381785 — a six-check JSON result.
Kapitel 14.2 & Kapitel 15.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97df24573896ce8d2a4d518fdf2d7509d46318374244aa7a07d5aea243d054e3. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXR12381786 — a six-check JSON result.
Kapitel 15.2 & Kapitel 16.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0cb4983b311287a0e7ba235fd8af4cecad6e21b3962a911c127b233a6f6fca. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/DEXR12381787 — a six-check JSON result.
Kapitel 16.2 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ed6ec385be2b318141fa8e05b3ed3381c47b456a6817980b68f46097d1ef57. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/DEXR12381788 — a six-check JSON result.
Kapitel 16.3 & Kapitel 17.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7ff0d58f8529e503a1a57fe5676867ec1198fbf018f9717ba12257692855bc. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEXR12381789 — a six-check JSON result.
Kapitel 17.2 & Kapitel 18.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286b11087bcab95789f2d105d174756d1c17fc40fdfc96308f3b78fd16d32fb9. 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/DEXR12381790 — a six-check JSON result.
Kapitel 18.2 & Kapitel 19.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c929389ac56754a509c1905a960078f6cc49eed3ce54b5b20b71a8d316c6cf. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/DEXR12381791 — a six-check JSON result.
Kapitel 19.2 & Kapitel 20.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc27e278e426489b7af3f14c143240ba4a0b0a71a90914e5f532a1420f8ed0b3. 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/DEXR12381792 — a six-check JSON result.
Kapitel 21.2 & Kapitel 22.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fe9cc6efe0858cf565505927fc76f2edef6ca2c34518af4bf3af6bcdf5139c. 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/DEXR12381794 — a six-check JSON result.
Kapitel 22.2 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db5c21b6b0bea9d2ea6d65f747a1d681aa0efe57d4672568bd2bad56cac3956. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DEXR12381795 — a six-check JSON result.
Kapitel 23.2 & Kapitel 24.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e21eb6235008cbc5f1f2de8916a6e2fdd74784e293e0998ba177699e29deb5. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXR12381797 — a six-check JSON result.
Kapitel 24.2 & Kapitel 25.1 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fdb80ff44d8c4014077e2dde1b8acdf024565b5df4738b22977dd32e11f4b9. 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/DEXR12381798 — a six-check JSON result.
Kapitel 25.2 - PS: Du bist genau richtig! (PS: Du bist die Beste! 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33bba2e0140823f44fc53517e158d320f49fbc9139ab69b897049a0533df287. 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/DEXR12381799 — a six-check JSON result.