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 0x6c20b5495abc92732875aec353f9f1d9e70a2858db95eeb6dc2429742fa01d74. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/421d7862-37b1-476a-89ab-74b404a86edf.json and https://artists.proofprofile.net/proofs/artist/421d7862-37b1-476a-89ab-74b404a86edf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
KAUT, E.: Meischter Eder und sin Pumuckl (De), No. 3
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 0x2a2959f53ead0ca2c51a1b2f4678bf74f28bf7b88e35b72c24f4fe6e55fd1e4d. 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/CH0042201183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4033435936620a5d692afda6f6015a8705ebc7551f42328c69bfbfacaab3692d. 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/CH0042201184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42d0fb011db1e97e49fb59d801f7e5d1a9137d601062c90fd19f57603a04685. 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/CH0042201185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13c542a0418421b334155ac8c1529bdbb8b657f0cc12228a73ab8c4f07a7e59. 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/CH0042201186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7fe89b36e48169e7e700129e1ddf3e20d5dc7be7e8287cb88bcc3bb010d645. 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/CH0042201187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fd301e663026fac33250d98c5144a31a2a4ca14fbbe0368e31223f587f3a67. 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/CH0042201188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2d707c24931197fca21ebb01c5f66198e5602fa2d2588dec5b6e48d496e4a4. 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/CH0042201189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6487c65de80b6c7ea4d0d8d9bae219e211b094765e9a6431cde27240f4bf5ec7. 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/CH0042201190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb930dd0f240a1564c513e4ffb3275da6c1449440697a2e2eb8194372f12f93. 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/CH0042201191.
E gheimnisvolli Schifflischaukle, Scene 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3c7bdb982962623119af71374d7a3671cc88f20581974363254edf15c32178. 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/CH0042201192.
E gheimnisvolli Schifflischaukle, Scene 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317eaa1bc5fc5b824d4874e3c9954df1fca44c07281494cfe167d801c3b24a92. 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/CH0042201193.
E gheimnisvolli Schifflischaukle, Scene 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3bff3fbf7b3a590b24c6ac6f03dc53a9b382b452549873dc1456e7fb6e9b2d. 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/CH0042201194.
E gheimnisvolli Schifflischaukle, Scene 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3284070bb86c8a6675cf982b1439409d5854a87dd3ea9c9435fae9e3abe8f5. 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/CH0042201195.
E gheimnisvolli Schifflischaukle, Scene 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e91ead23bed6cc550883874867205d9424939cae7e6b0d45226a519cbbf0b0. 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/CH0042201196.
E gheimnisvolli Schifflischaukle, Scene 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013e366e121368ad8a2ef999bda8b1668fefd47e79e9a70dbcf1015b055cd1fc. 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/CH0042201197.
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.