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 0x79772493c92820f2e811af7c724994954d9e75f76bcd73790e7ecd301ac5bd56. 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/30c9af82-83d2-4162-88b2-7b34775aa438.json and https://artists.proofprofile.net/proofs/artist/30c9af82-83d2-4162-88b2-7b34775aa438.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 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 0xa9c70c7f65104d6c4d0adee967c85ce94713b0b1f849974db036719aa507821e. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/DEZC62140792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64251c782691a2ad0c8219b6380ffa52a33bad1b603bd1cb691afbabd9cb90ee. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/IL1042205721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c75d15a7f1cec9021fabc6f923b6845600beef5bdb98db9648e3ca363756d5. 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/IL1042405031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61414cadc79ad076bf8b5c1c5a0178266595cada3224f93b2b859d3bc646c194. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/IL1042407001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7b407781801de93f365a9c5a972afe2516d853c57e258117176fb2ec63e9d8. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/IL1042304511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496c0b3acd2706d49293d8d2b3451336e62adfd39349cf456e83463b3efbad88. 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/IL1042407003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285afa0e1495911948eefaf1f8e00866f34c87dcde9ba113f212986d879eef81. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/IL1042406461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b7406b966946cfb9c8d0c45e024ed7a73f7f1227d65ff01e5274c5eea284d3. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/IL1042407008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63de9a0b7dc17aa8862c3b0524acbcdbbed4ac78fe81ecb6ecbdc765d1cb646. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/IL1042407013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f2d1a64018f99749a8dc9929f46c1631d2c18679468d66fd389295ec5fed86. 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/IL1042004819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4de25b748543f82f383709879450731c1a6a1857778fe45274aa31e75dc548. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/IL7532313426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf62268d1d928810bbf12c41631d909f2886791e53d7c3d54d0c3b2311a7b64. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/IL1042305001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f016499fc04eb8e1a49fcb834898ecb94de0c22953f15938b71fd522a1685bc. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/IL1042305003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1afbde8698e525bff561a7ac8944b8cd92edfa1b941d9f33531db57afc9f6df8. 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/IL1042305012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c45e3c169b331f5194626832d1590d4cf0566ce4cc0e85ef05998a81815972d. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/IL1042305014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0a7fe737fd7d4dd151b58dd95724394c8afe16c2313e05d5180463f257f0f6. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/IL1042305010.
כנען (12 מרגלים) - מתוך גלגלייב עם דלית רצ'שטר
כנען (12 מרגלים) [מתוך גלגלייב עם דלית רצ'שטר]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec546d2dcb03d65f74a7ec56bcbcae53d1b13b5e850d0551e74483ff3fb6481b. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/IL7532313366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc446ef14c990618e0bef142201bcad3c998726edb99d1c520be5a8e9421fca6b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IL7532213075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6aaabf67598b5246d17b05a04f1770f0f7845956482a8f0801a693853f0b8d8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IL7532213076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d409d4c628d2512d9f1cbb7b89d1550d7d368fa992c3adae07e6220787c3636. 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/IL7532213077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0433290becae426b6c7334166da673e5074582e65b6d7ac52dea4febefeaf2. 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/IL7532213081.