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 0x0b710db548d8f4ce150e2d4ae924c5a94a00b661f4edd7d2a9e01dbce7473f2a. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ac9e761-a03f-46ce-a333-a6b8233e257c.json and https://artists.proofprofile.net/proofs/artist/8ac9e761-a03f-46ce-a333-a6b8233e257c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ihri schönschte Liedli + Tänzli (Mythen-Lied-Edition)
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 0x5ded9a8f07b62bd5da4eba425d2a041d612f75eeb792ca51bba4bbc2aeefa937. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH0201010053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e6ee3a1dec2a232e8060e0179735324c6b233d079e80312576fab17bf972d2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH0201010055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6299f0d971ca6f9ee90680ef627697e859729f382a7a1a6a2bd258bfe803633. 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/CH0201010051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d537101840c458c1619e56ce33e66c161772ce86d9f51266aacbf7b6cdfdfc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH0201812731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf5561e4752c9ac1d94ad502e16b621ec87d4f5fef8e00bd140b23dea06fbb5. 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/CH0201210496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6299f0d971ca6f9ee90680ef627697e859729f382a7a1a6a2bd258bfe803633. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CH0201010051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ded9a8f07b62bd5da4eba425d2a041d612f75eeb792ca51bba4bbc2aeefa937. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0201010053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e6ee3a1dec2a232e8060e0179735324c6b233d079e80312576fab17bf972d2. 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/CH0201010055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289ec6159a51ca1b59562b71b60de5ba5b387c54520501438ec4a492c4270ac9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH0201010059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2fa180fbeb95bba8fb770dbde1e6c6b093e5007ff50bd3e10bad2749be2eac. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0201712474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae15673398c2fb1e29773ed7b0c44bb1d2182d3473a715e2442b359d924a03d. 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/CH0201812725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a72c7c5bea39658b27435dc59c6f2460f8a2e49c7eafc89fdc4504e5c66cdb. 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/CH0201411168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5876eca5a0353d7567add8418046213c84057402821f826c43494c745e0831d5. 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/CHA171900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf5561e4752c9ac1d94ad502e16b621ec87d4f5fef8e00bd140b23dea06fbb5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH0201210496.
Fredy Hess mit de 10 grosse Schwyzerörgeler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca887521576c63ccfdfa6ee6318d20f2831aacfc53b8261be0a48178b0ce115. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0201512090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef8affa62682cc3ecd1f428f19bbf956cef8f4e86384fa4b06d295c2a5587ee. 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/CH0201512068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bce9686a4a5abe5f055194284161dbca14aae2018b6268cb8fb6c3c9962b45. 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/CHA171800165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bc46d038f8c0280437ba6072e37c1535001b3498c5caa7118c2a9ed3a8fad2. 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/CH0201110376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b1abf4c80dc269cdc54520d91fcd64746867c918e9ab77fa472c52cc95467f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH0208500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc870c31a2d5ac3dc62e56df08c084f7a6eb68e3e00f6c5d8376efacfb8d2efef. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH0201712452.