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 0xb7a18d82e606b6f3e39a2e7b1455393ac8b902c728888b62164967dda5398a18. 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/9096facf-3ba8-4f8d-b42f-1c8e329c5d15.json and https://artists.proofprofile.net/proofs/artist/9096facf-3ba8-4f8d-b42f-1c8e329c5d15.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 0x22367e0249111d5824e152f247cfde9e67b4f8750d5a25ca8125919125780c87. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/IL5841821497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadee5f263757c3ac6ab1097d7e9eb63025505809b9c9bfd555b81e77d4a42e7. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/IL5841821498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b084ca7ef60b2a2a3163b552981ca6307aee66714ba4a91492c9742d67abd9e. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZN882071995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2847c8e9532a243e263f5e8461479ce5134112643b0d0f88f005ee7deea5cac8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZ22B2070685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fba8eb305ccd6a753358f3f2ace361c829f6b6bec743ac4f5c5e0270a3ee80. 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/QZ22B3017531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90aeefa74a51508293a8b93f12bdea88954fe07d56f447bdea53fb9ddc29604. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/IL6652001813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b4865434841e1973386277e8dcdf14861a365d269059aac7926cfca5a315a0. 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/IL6652002085.
שעונים (גרסת מאיה בלזיצמן ומתן אפרת ל'אדם בתוך עצמו' - שלום חנוך)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf80dbcb703588fa203be1f124c67f9dfe0cf6e4b9f1c15187d01237dfd6d897. 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/IL6432100604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf937494f53f4198922ecb412f62f15e5fc88dce7d39e3bf51daec1d20327576. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/IL6432100605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81654510e33b10542d67edb1d09a10702acf405159cbe5144193927734c03692. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/IL6432100608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b0c067e18ea2237473d4e9c60f8f7fed52a4f6ce56753508a0d18db11c9d9a. 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/IL6652103210.
Almost Successful (From "Goodbye Persil")
Sizzling of Childhood (From "Goodbye Persil")
Goodbye Persil (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14e6cc8ab5a2da9736117f26a7b6e86d04fb1b939310ee1ae00bfde0a566dee. 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/IL1042004825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ebb31e674e2f8f9404426cec33f16ed7ea7c6e2800618e3a7d26be17c9ca75. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/IL6192000118.
לילה של כוכבים - שירי ילדים מאת שלום חנוך
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f8679ef609814170bbc810bd80607bc5101b64bf31d7d5c55750a7b0c737d0. 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/IL3601205980.