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 0x1012da79502a7e47d9e830969363aafa728016ccb3d46e4cf1fe2e7007ead97e. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef62ee5e-7eff-4654-8b4b-0f574e84e0b2.json and https://artists.proofprofile.net/proofs/artist/ef62ee5e-7eff-4654-8b4b-0f574e84e0b2.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 0xbc05139b283d2f64695f217002a7c1175e25e068d368cd5569dcf2ad67d90a62. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IL2DY2300232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e165b67d2bc9621bd2ec582a9efca13fe7586a7cb1b62b426cf2b3044d144c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IL2DY2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a4848be9a9b8aad99bd3c52cbace9755dc335b7c895d97cee0f1b5bf17a654. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IL2DY2200223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e972034244cda9243d3a95a2fed6662eed6583e2532e6d360084bd1009bc8c9. 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/IL2DY2300233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ef461f33a30bcb4b5253573497f39f4bed06912bb4a9b3059cf73c01472de1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IL2DY2200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19977eebe63221ed4004f80fcc710db210c1ff2d910e092fdd2e8c9385f60364. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IL2DY2100261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5de34704642e675f89b7d16ac686dfa78ea6d1c292ea7bb5060460273a0fe46. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IL2DY2300234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6852e107ca2527ffe3f8a34839deeed5ffe60688a8242dbd81c5b4233adaf839. 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/IL2DY2100119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42840a8507034421f7dfb107ad20c567952d2fe37a847f8f92a3d1a94ffdb7c0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IL2DY2300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab44a156e56caa876297e559695927e6acaf944250ca677827ce90dfae41f802. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IL2DY2100289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2c90683a4fd455a52cc1f1d4f20eff676cd512270ebc4ba9ca1aad73deb28e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IL2DY2100148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b41f87231b09da867bf20239112b922e8ff868965130f41cc0dd6a8c1cb544. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEAR42063430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2f5aa811b348bcb8183329d48235bcc44be55b81e4f8e302e69ed96c935c3c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEAR42290678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725113b11318ea738f0b5b62c55435b438235513360df8c27d55096f4764150b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEAR42309925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0d6eb541da6b5f58a02dfaa2cb8a7e119355d0c74273e7576208d392ad7bf9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEAR42279289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd0512b0b3d296cdfa935c198bb7bc766c1158b3132d104bafcfc125e7132b3. 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/IL2DY2200164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3474b8946e7e4174fcb001ddabc7b084417fabe75b677654206fb85292b9f60. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/IL2DY2100399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf68d8010e836865c4d11404eab7b9d0e480937886d64065f56d83983650744. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:03:20Z), 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/IL2DY2100199.
המבוגרים תמיד מפספסים את הגשם - פרויקט שירי הילדים של משה צחור