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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce0a73f8b81fa40a76fdbbd58a170a1185b2280c9758f4ce65aaee63e49b8e9. 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/3a25c5bc-611a-46c2-99c2-321f5dd947f1.json and https://artists.proofprofile.net/proofs/artist/3a25c5bc-611a-46c2-99c2-321f5dd947f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
De Pumuckl und s Schlossgschpängscht: Szene 1
De Meischter Eder und sin Pumuckl, Vol. 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ba315c7f4b94d72c35773833916fa99fb1bca044893f0d705a0b0cf8cc1297. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CH0042101005.
De Pumuckl und s Schlossgschpängscht: Szene 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8b919268ecf71f13c540eb4a2677c2bbc4dc4f13cd191d5ef47b1fbf178e14. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CH0042101007.
De Pumuckl und s Schlossgschpängscht: Szene 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609dfbad4cc61ca863280c09af2fa2cd6f6183ae3b7c366ff4445ab4bcfcbadd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0042101009.
De Pumuckl und s Schlossgschpängscht: Szene 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e432cdcdad68e53e4d54a44f353e11cf2c9bbb1473d70421bd74ed69380bbc2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0042101010.
De Pumuckl und s Schlossgschpängscht: Szene 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db336bb1a96b72de089b7a9972d124d623f0f533a3e83f3224fe230769bb729. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0042101012.
En Kobold i de Werchstatt: De Pumuckl nickt!
KAUT, E.: Meischter Eder und sin Pumuckl (De), No. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e428b0d9ff517bd39f19bb7c0c4774e41e5e1967563b44c822b0be2ccd6d019. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CH0042201273.
En Kobold i de Werchstatt: Laa die Fiele da!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31899ff6a786ac182f131d84929b3e9df0d2d096505d962d6d318f4b6aa752de. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CH0042201274.
En Kobold i de Werchstatt: Ich weiss eigentli nöd öb mir das passt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519dbb2b5c3fdb5c8416485f612452179a7c62ebaf83ce3e55d194a1dc712120. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CH0042201275.
En Kobold i de Werchstatt: Was isch? Wo bisch gsii?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6752fd065ad54ddf65d67dd8e335fd37687d6cd944784b3efe0f18e4c2764c81. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CH0042201276.
En Kobold i de Werchstatt: Pumuckl i bi ja so froh, dass Du wüürkli da bisch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc055cf1a3e855c28d238e02ef1f8d59d56cee57b70f4abc451861c39b5b644d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CH0042201277.
En Kobold i de Werchstatt: Ahh, gschpunnene Kobold!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd611564a54110850a0c1db853d113586706938fbaec886a14ef10fe710ef5d24. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CH0042201278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a492c2ba0095f6d806868404fde7805600a727c3e959d0c2e3c9cb8a506aaa1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CH0042201279.
En Kobold i de Werchstatt: Alles isch furt gsii!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064ac164426d46b7ad41654495164c58705294db26045afd7107474e4f7a2e0a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CH0042201280.
Es gschnitzts Bett: Es isch natüürli scho luschtig!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb16568a3b0d7d17e2b5d2b19eae091eaefa3c4778e0eb84d2f19260b1f53cce. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CH0042201281.
Es gschnitzts Bett: Nei, nei, wott i nöd!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2d5a043c2e36476dca4178180da4ce4849cdee90b5930287b678d805a712c1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CH0042201282.
Es gschnitzts Bett: Miis Bett! Miis Bett!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ade2c63b08a46ee543de2d20504ae16227782ca8ae6f1f8c11240658c598059. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CH0042201283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d90a21f66a9f088540a6f54025419b702a64d8961a8336ed59596df348e89e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CH0042201284.
De Pumuckl und s Schlossgschpängscht: Szene 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353ad5a93cc5ff7f15426554c0d5b01916f642f351017415fd3361e188285f9e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0042101006.
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
De Pumuckl und s Schlossgschpängscht: Szene 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51dc6a75937c55897ffc3c6cc53e8cfdf19441ac7b9d5c1152869e02bcf3a7d. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0042101008.
De Pumuckl und s Schlossgschpängscht: Szene 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674816cfd5ad4cae401c173ca78fd3ed2fdf0cc43e555093b0356dee297beab3. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0042101011.