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 0x86094c7c82c2728d8fae6a20373ef4f4fecf7fa4a83f7d3f7584320fd92f15f1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c69a8ac7-6c59-4f1a-9fc1-ef777950bb49.json and https://artists.proofprofile.net/proofs/artist/c69a8ac7-6c59-4f1a-9fc1-ef777950bb49.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 0x8ecbe8aad2e46161e1335166185b861acc17340f9c448c999dfb6425918a28ee. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/IL1056600054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5db59395ec03616063fed4b42427783d0e59c8bedf7aa3f30649704a8c46cfb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/IL1056600055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a53ff4344af9f3ea84de51e86cc86b22d12e241884b9d2be5525fec817cc9dc. 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/IL1056600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdda7b57f52a80d38f3771193d245c8ffb9de03bab93b109584aab86fd9ca746. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/IL1056600063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0d08344e7e7ca3f978b206326db8977ce31a41d65f577fb6822608f1baa78b. 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/IL1056600064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31323f80de92b46ff85e22223935604e9348160a7a3e3f2afc404238c31a8f06. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/IL1056600065.
Let's dance with Effi Netzer and his band, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb853a7a9339d5788298609c72f0c5d6a69af6ad52bd7014407f8be8b223f6981. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:33:39Z), 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/IL1057300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488e4695805cc28f49047ada99aefd4c09af061bd1666e6d21f3fc8915ef6465. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:03:02Z), 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/IL1057300059.
Sulam Yaakov - Minhag Chadash Ba Lamdina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ff6b1e27dbfce1b5bbed3a6b6eb21296853272fc7f26c568429042edd03776. 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/IL1057300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5777be46082eaff5bef038a1a9ab9cdca6a5d7d7e3d25e598d7e38300607fea3. 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/IL1057300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad73ef9bb324df9514c230a2d7a2acc6b80b0a871816974300c8f5b22204d604. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/IL1057700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0102173fa5f65d33bbc5a6b1a0f3245b6f00a890b8b96abf9bd8fca13954a347. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:51:01Z), 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/IL1057700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e121568333d40734b882e443c45cde39ae117e66e29595fb1031635dd5fb44. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/IL1056800017.
Shalom Al Israel Israeli Folk Dances, Vol. 2 (Instrumental Dance Verison of Israeli Folk Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0102173fa5f65d33bbc5a6b1a0f3245b6f00a890b8b96abf9bd8fca13954a347. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/IL1057700057.
Shiru Hashir Israeli Folk Dances, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d28d772bf29ce6d347301be5df41bb1dd6404e25673e68312f36b158efba9e. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/IL1057300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7b52e1e331bd042acfadc164711fb6710cf3f21842094ea19e3f1448781184. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/IL1057500065.
The Best Israeli Folk Dances, Vol.3 (Eretz Eretz)