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 0xe20f548ac62a90d327bfbdc0fab632b8598252cf5693c981d5a2a8aaea0d2b1b. 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/527a7e3b-d0bb-4ebf-bfeb-8c42331e362b.json and https://artists.proofprofile.net/proofs/artist/527a7e3b-d0bb-4ebf-bfeb-8c42331e362b.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 0x594b1c2ed4fc71ff2f3617d496dc443ba307c739a1a0fc34f767cf296e64fcb0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IL1011901425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367d1987213ee48ef0cb765d07ee777ded92b024ebf7e07a10c67dcc86f26327. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/IL1011901429.
חשק לי לומר תפילה (מתוך פרויקט ״שם עולם״)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1348c8ed74523d787fa9551e393adf8c518d053ae51c18cae52e11e7827aa9. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/IL1011902591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e235a16de79f9cdc6fe8c41dbfb8562696e0f3926a50f657d81ea0e9dec2b2. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/IL1012000384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177565cda1a35fc177db5f04f06ec4286db9bf42b5c4142f9e1e09bcaa770821. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/IL1012100627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177565cda1a35fc177db5f04f06ec4286db9bf42b5c4142f9e1e09bcaa770821. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/IL1012100627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0344eb6355fb55005a79b1592a078530826432fbb3c3a199113123e2851beb5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IL1012200909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f84138adbbaa26a0e975fde61dab31eb3eae4f96b068ccc74fdf1a7c082545f. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/IL1012301524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924713d5e879eae91ecf390cabb4b59df4f2b22765d69d9989340507d81115df. 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/IL1012301929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f84138adbbaa26a0e975fde61dab31eb3eae4f96b068ccc74fdf1a7c082545f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/IL1012301524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbe43ccac1d94360f47cc20579931eb2cdf17dc3d572a9bfebc93d019cde925. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IL1012400782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37ad521e85b3ab15b194c918f3b95db09525d5d7d96b79aa09bfc8c9dd7e657. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/IL1012402283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5091a978233e535a67afe46714c0a9b6d6569013929784db32a4d80ef759bfc7. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/IL1011900772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c7e7f7f00a7be3b529074dca3e20cc3ab0cc9b32d39ebfb4fedb408dcac155. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/IL1012201001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1e6a975965b2667326722f40779c4c521fe16d52e5a48210ba845c21739638. 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/IL6432200731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ceb04ac4cd7b249bea42bb1dbb111ebd6b4a24234fa5c4bbf1c008f897a263. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/IL1012001155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e00823c4b6e5d8be0182b8370cd7d42bf4b6fe1e63633c972f8fb3ef139950. 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/IL4721000761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad69031e51edac2b4a3a6a8457c2869b014636f5f071a4f4652432dd90342fa3. 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/IL4721000762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c42b0f6376511f43765f9163bcac7900b9cd32f1a058e22ed5b8242ed54c0b. 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/IL4721000763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49eae862ac9624c411205db463cecdbf3a5373740948762be427ba1a59aae313. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/IL4721000764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f26245bde3e7254254997203e2b29fbe88a0b5f7a387ac1114cdaaa39762863. 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/IL4721000765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e177e436048b64a15e557d2089b30aedc18c3f54a80389b29fa7dedcc816295. 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/IL4721000766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05323a8628dd23b63bd0c6869b125b88c879a6b71950f8a1ea07c0c8713500b3. 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/IL4721000767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4060f22506b83a6cbc678548809d301104428aa60b349fdd71622d47944e2a95. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/IL4721000768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbef01e7b69d923e0a07a4a7a00b70c670e4240af5eeee26eb50b865319cab83. 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/IL4721000769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4eea05d26e91368fb0a92a0d26328c31c7a1e16754d94b35c3203b413d5c335. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/IL4721000770.
מותק של פסטיבל 5 - הרפתקה בארץ קסם (2012)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0a474e4a198422da26ca3c614ff56e787c72b6989b1d3b2d89bb12c39cdcd0. 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/IL1011900721.
לילה של כוכבים - שירי ילדים מאת שלום חנוך
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a2b34bbf3065121f045f18739a5aaaf7b047197e54d076bf69269415ad49fd. 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/IL3601205060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1e6a975965b2667326722f40779c4c521fe16d52e5a48210ba845c21739638. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/IL6432200731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e24ce0aa4946835a85ceed32a40e5c125de58374a8f54d13954affb8652aeb8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/IL6432200741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe03daf8d94abf7787c0760593950854dca082dc917590c2c781131182e44fcb. 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/IL6432200744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02526a861bc7549f4ea284453c1bb06d79b2f305e73687263f8270aab7aea55e. 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/IL1011126208.