Zoë Anina Kressler (born 6 October 2000), known professionally as Zoë Më, is a Swiss singer and songwriter. She represented Switzerland in the Eurovision Song Contest 2025 on home soil in Basel with t
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 0x28fadeae252e607c4dbe403caf758838d6b87fba5078d639d2fd1abc9c5d36e1. 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/5c815c16-1aea-4247-9f84-4cf3852298db.json and https://artists.proofprofile.net/proofs/artist/5c815c16-1aea-4247-9f84-4cf3852298db.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a12e5d0f386a70b75cfecbc3da41a2fc1da46099e0531e115cfbfbdf07e018c. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZK6L2021784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76826aa150d35d3c93b50d5a73311567a69812ffe4521092141269d33a913be3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6L2021785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f985b63cb59d7c20e2883c4e0db9f67c2ab816da2faea1096fed6f630deb46. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:25:29Z), 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/QZK6L2021788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd04c3cb65aaa8f1f66b374d116728f70a7e72aedcd3ec8242040ccabd88b8d5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZK6L2021789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded95f475f8321a308e7f27f9586f14e1c9015752cc3c10a7e613b77b679f41d. 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/QZK6Q2060921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2494700973eeb770f3e0f25c0390434720ad226ded068864dd9d89e9a484b7a1. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:56:46Z), 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/QZES62170984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9690433eaaf7c9961d93f2185f0145ab8fa243e5384f247b5028118a04f0fb9. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/DEZC62495520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e9c6a1bb6e558d3ca084b317213ba5d898a8573d518fc7bbe83df404347913. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62382782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7167ea841c19d4e609693f4b930bbc4559759ecd0b7d716b6724916bcb480b9e. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DEA622503858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecde1d02ecac529fbbd5b63248f7a511d0bd414633ba5d3b6f381c40b0f1d01. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEA622500652.
Voyage - Eurovision 2025 - Switzerland / Karaoke
Eurovision Song Contest Basel 2025 (Karaoke Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e70680155924229c68a9f2bbdaf63684226208cd4dad84cc1cecf2bef531ec. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DK2DY2500118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecde1d02ecac529fbbd5b63248f7a511d0bd414633ba5d3b6f381c40b0f1d01. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEA622500652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecde1d02ecac529fbbd5b63248f7a511d0bd414633ba5d3b6f381c40b0f1d01. 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/DEA622500652.
Freunde finden / Devenir Amis (feat. ZOË MË)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0e8bac4950d5b3cc603374aaa2bc78aac141fe6748ac9aeed163eb5089deda. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEC712400972.
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