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 0xfc2302d3e0ab46b2fa12fa1171d612c327d79f3a40f28844507ca6bb535e70e7. 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/03824c0a-3dd4-46eb-85d8-00d82aa1d198.json and https://artists.proofprofile.net/proofs/artist/03824c0a-3dd4-46eb-85d8-00d82aa1d198.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 0x34edebdc3d923911532990b96c929aea7a365a8d2a31a8ea9923a9aff07bf9fc. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/IL1049900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c380cd5d2960f080edee84a07892273762a27d8bc1f066043d3d7cb61c960d7. 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/IL1049900112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fdd19d2e309247915e9cdf5fb8524eb5fc14b03d737915b9916b46bc66a1fc. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/IL1040500404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ead43fa936b381a6a6a4656cf4bd44b623645cdf9ab4baa399000e933c0529c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IL1040800113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b504cb29d2aa09ed304e22762dee68fbd841c7986bb133b93ac7123e0a4e6b7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/IL1040800131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f9d8f3e076676640ea71a932e7f13a87abe89b8ed26fc49f95d285d7757eac. 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/IL1040800114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bac2e4772be16ea5dc8bcd882b5597f0fddb079d6cb729fac204a4cb5861c38. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IL1040800115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5024ead1859644d0a9b7d3df2cac8a064a3ae1eacbee14bf33fc9a580226b9a5. 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/IL1040800116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa518ca5efc7d0f1aaf0e1e25168950e45a6d498363b6961054db6cb10998464a. 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/IL1040800136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc690efb5fe233274c985819c06b703816daaf7f9a594daca3410bc854ee1e1. 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/IL1040800120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ded97b8a74ab79572cadba167eccf0aa7745db4a1a12b1ae9e6c46a7406b2ec. 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/IL1040800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345876b2bffa12934d1b21e277d9c4b75abdb347f50e46849b9b9d0eb7574e61. 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/IL1040800122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f6e96bd110c279648ddf60dc1f76dbb0f2119cd5019ecfb4fff203528fe220. 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/IL1040800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc5e26ac9c52ae223ad2c871ab8026bac9ab928e89de6b716140d0d60de5e78. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/IL1040800118.
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 0x6bc057b544f78251398dbd8c1738fb83c77e9484617454f4654ba2d5af957679. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/IL1040800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662091d8990d453db737f346b10a2d8dfc5074c0ce70f23bf5ab918c676b46fe. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/IL1040800123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b29256266c029e97c5f1eb7f3082561af690a2c26ca6a8f86b9a66a342f130. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/IL1040800141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373516b76c8d57ed65d883a4c73ebfa0e2aad5590ba3cc0729a04a8f29947123. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/IL1040800124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e655eaf450e11a3aafdb65330bbafd83960beedf8845c060f5d9e9ddc2db53. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/IL1040800145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416bde6a32b9831546ab81a859ceb17fd6fb2f37e5cd65506246dc0ee4cd1569. 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/IL1040800128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eebd0033fe207a5a265b8460d415dfd1f470e7b374e27799291b4a262fad2da. 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/IL1041701605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e5de8e42d38cb1b7b5ccff82b4895779e24e19268451ddcde8e68eb13bd2d5. 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/IL1042100651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22dfc9f33abb4718ea7f1d9a284eb0119856ff5b4e9d8517e21191c4c9e5b85. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/IL7532313618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22dfc9f33abb4718ea7f1d9a284eb0119856ff5b4e9d8517e21191c4c9e5b85. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/IL7532313618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565a1118682a083febefc1cb71440dc6201fe9ae3bec1c02e362b6dc995ec357. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:09:51Z), 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/IL1042406931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a5c6bab69f850d2491530c70051f06c709f2e4adc5ed722a61388549962bf7. 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/IL1001800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f23b47b13da7d7209dec7fec94fc0c429bca11822c85486ef6c6545191ab49a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/IL1042004808.
עבודה עברית - מחווה ל-60 שנות יצירה מקורית
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930a55f6347a1dfd6bfb73ff740268a691fb651958615462cdda51f2f9f6c9b7. 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/IL3600801630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87607130d926e20eac9a65cf96807695c9fb903da8593bc5af22048089d2a320. 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/IL1011122838.