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 0x51bee2907308c95696d272e3212756140f9922685a46a4ac445f488d3c5fa2bb. 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/afc92ea5-8c87-4f82-81f6-bf380fb236f6.json and https://artists.proofprofile.net/proofs/artist/afc92ea5-8c87-4f82-81f6-bf380fb236f6.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 0x1476fbc4c9988b196eb8a726cdea1f3b4e8e682628559e1617f70c777b270119. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DES871817801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3810451fa031a19aba29b690e1b67a51b93893702b89281214ee91440d3cf6cc. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), 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/DES871817809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51853276a0b5fa9bbf24097483abdc25b87fe01f694e33d8aae8f7c78fbd628f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DES871817810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e4c9e339e7d29fff3b4ae9e546f668a14f8e0ea9ccf284fb62676f48616d25. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DES871817812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6461ba4e0368c23e431f82a40bf744c3b528678929fe07571d1ff5cc0888d3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DES871817814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e031d4f4953d56e256209bbc330f900398f36ab442fef717cceb654b8005415. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEOV42000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5008addf167d403e1442b721444af3184b2bb3814342d119eb62180b595238. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DEOV42000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6472e32f2904f1b53b3cf87497d8ad12f85defa994384c49d1e98499274374. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/DEOV42000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0dbb87343957ebb3bb0ea44f5751947ffcdc7e360599683329e8cbaa465b576. 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/DEOV42000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6470741de3225a2ad7a6c23630bd90afa044cc78a56a108b00ccc9baae4b01dd. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DEOV42000083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022c39ba42e2251d963f2ca5bc429deb536e3ebfd158bce693543c1bc8e99282. 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/DEOV42000085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff382c0483be965daa284717d9302b72feb66c4431d0cd0a56edee027c2f8e0. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/DEOV42000087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0356b24f8f39c489ea47c9adc222e2d628583f7fc51a42c15430d09533e595. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:43:18Z), 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/DEWO61700409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a5e498637529244d3f6ff22081e9c10cd0bf50332a9a71013f956857a33290. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEWO61700410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34a94ef78611b2275ca874a8de9584282075912307fdb59caa49a1cf8a496a5. 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/DEWO61700412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc8a102171bfac10da1542bc0d0bc7b884e07afd3d009478fd0b7754824cbdc. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DEWO61700413.
(Durch meine viel zu grosse) Brille (kann ich dich jetzt auch nicht mehr sehn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bcd8383141fbca520b68750c1bd2d52a1dc51315ae119f3f41dd896f602b9b1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DEWO61700414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e3cdc2ebfd2908431041b5a0dd40e9204215149618893a8274f850394ff59c. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/DEWO61700415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd74ae783901726cbfba9b934e39ea6f86ba15d081c0922c3dd6b10757063b2. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/DEWO61700416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36b11719b926a44bf3abc1ecc0769a79ddaea5e6b4ca2d8fcf8bf442f109f8e. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/DEWO61700417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef69db5aed36b3d976f2af4e775de49570e6886eaa3234558252f36c3d079d3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEWO61700418.