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 0x75ec91c1a3ab55820c3dfb3122e2bf91b1bbf343db13e4dab497bfa19f08d234. 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/80b36b1c-03a6-49f7-a920-b344c4cb2331.json and https://artists.proofprofile.net/proofs/artist/80b36b1c-03a6-49f7-a920-b344c4cb2331.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Einmalig, aber für alle genug! (Remastered)
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 0xc02b518aa7f13489882960fdb88300c413117f44344a5b62908ada3b9cb8d258. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/DEAR42153108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf38ee61e3479011849b489305384ac36962b01bfdf43cec6756a1cbb0823da8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAR42160483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011b1df473df988d72fcf2a3eeb83389fc9226b3d69bad1b5071f97944876ded. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEAR42128442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5407dadaa7b68b1cd2b54831a8eaccee881f4445dcabd62a305f1dd46c6afc3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DEAR42198843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66c3b492e02a481905cef16f1dc1dfefb95508b6a71f57bbe4814728c4b9388. 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/DEAR42144195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73507a330cc1c8437c9c942b802bb82420dd20b9b6dd3d663de34bba161122bb. 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/DEAR42110023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2626bcd74e2c63254362b965bec04f8ff792b868ef1039d4a9710c04435db39e. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/DEAR42135188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c41f2e0137d069c9228bc739c39e5b64585ba1a59901ef76342f7eed422a98. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DEAR42193772.
Unsere Welt (Offizieller Music-For-Nature.Net Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c235f51321c82ba2117b1d082a07fa756abac73a83b908f8f391e75151972d. 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/DEAR42114609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3531288230c964b2ade6c3fb8de2191261a62a97ed899f0c98a04bbb000c5b01. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEAR42118012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb137ee15032eca0a47b3c4821ba351f07b4652f25bce082a19a909f2f9ed89ea. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/DEAR42146616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded9936723e2a002d3a0fcbd5df6f46d16504fa3d7c554f5138d9461773250be. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEAR42258218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f88d3d97f145860d443d80e447306b21eeeae2de6a0ce8f4857860a7ac36b3b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAR42286119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0269a52b6d82fdaf3fdce3bf6740aa6804347379640303cfb51bba4489a7607. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/DEAR42593015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52590fe79102e165c387fa392388238b2ce961a4dc5f3e34aef866ad3f810c8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEAR42593525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3c1907004782d73365bc104d35445e52de8bbd0692f1297203286b55d8a6bf. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/DEAR42592945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eac3b8bdcb86b6f66cbb9c458402d682c0ab0cba7d34d30d5fb4e0318ed8df4. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/DEAR42593057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155d428cb9f5b0180740a3eaa32b9f5f82d7d1f8b620316abc036c21af25fa9d. 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/DEAR42592912.