Hop! Channel (Hebrew: , Arutz Hop!) is an Israeli children's television channel aimed entirely for preschool children. The channel caters for children between the ages of zero and seven years old, pre
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 0x1c19acc056d56078b48aba9a27b4219977dbc2213eb302af7dd2fe87d8c2aa41. 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/07d00b57-6a31-436c-851b-47e76848898a.json and https://artists.proofprofile.net/proofs/artist/07d00b57-6a31-436c-851b-47e76848898a.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 0xf0dc24a1110f075567c0d277fc5f297e24af502b3afa265e1bf7ec652243f543. 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/IL2DY2200176.
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 0x51bb44bda1ccbffc36ef21b213e181687b91c0886a7c320cfb65bbb78f714635. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/IL2DY2200165.
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 0x25cfdf9248788010eadcfe8d3a56ba2a581bbbafd092817de196ef59024d9ed6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/IL2DY2200097.
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 0xf28c10ca98f89b4d97959bd6f8aa6df0dfa733c457daf66e892b3c7341dfda01. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/IL2DY2100099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf68d8010e836865c4d11404eab7b9d0e480937886d64065f56d83983650744. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/IL2DY2100199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7673075c6c89ebaae7c08b2c80156abda37bc89e4a32e817216a3c9e8be9b31f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/IL2DY2200121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10829c17eb94cdd3f73309faf142c78f69eb494561b15d8149d2ab2559a07d2f. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/IL2DY2100290.