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 0xbe3beeed5543190c1ebd4006a349f9d3e9e305971beda9dc8923a25c08056be7. 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/62841024-5772-4736-a965-f3d652a85bac.json and https://artists.proofprofile.net/proofs/artist/62841024-5772-4736-a965-f3d652a85bac.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 0x8e67adbf56cd2d11d50e3ab8fafedcf62a2a0991c476d3b5cbecfbb2d21f6942. 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/IL1012400810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b90627f246cc362ebd028a02d3221037fa6938a0adf0bdbec3640f3d49b1a1. 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/IL7532313243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cf310dee533d63d0b496b38f5af9b5dc7c2308a628ee6ae384b2f38e1c5ea7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IL1012400807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7910f27f5c190b4a45632abf13b518e4392b78d4f179e9f8b0ec9de63b2500b. 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/IL1012400808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e67adbf56cd2d11d50e3ab8fafedcf62a2a0991c476d3b5cbecfbb2d21f6942. 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/IL1012400810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7c4825720472d4387e63401588102631e36ac55a9bbe2dee08a0ea5193d487. 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/IL1012400811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10374d7a3b1877a51ef3d7f3c7b5705480cc7b9df02ff6c17b291291f8685801. 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/IL1012400809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35714cb1a4956994560f7f5cf398633beb682d7dc5bb0e0ea07c7b633d73b29. 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/IL1012400813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865058d8cc56d7aa490ca8faa7d045c4965c51943fc66baa60a02e01028e64bf. 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/IL1012400815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f948f951c9362b3db1be9d013a45196d7071d73786ed66d37ab9bd072820e8. 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/IL1012401002.
חתולים שחורים (Dor Gold & Guy Hoss Remix)
חתולים שחורים - Dor Gold & Guy Hoss Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276464cb0bef44477fc33e967895a196c120b8e27b7d1bae76e7d14baf59cea7. 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/IL1012400882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7c4825720472d4387e63401588102631e36ac55a9bbe2dee08a0ea5193d487. 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/IL1012400811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cf310dee533d63d0b496b38f5af9b5dc7c2308a628ee6ae384b2f38e1c5ea7. 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/IL1012400807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35714cb1a4956994560f7f5cf398633beb682d7dc5bb0e0ea07c7b633d73b29. 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/IL1012400813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10374d7a3b1877a51ef3d7f3c7b5705480cc7b9df02ff6c17b291291f8685801. 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/IL1012400809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7910f27f5c190b4a45632abf13b518e4392b78d4f179e9f8b0ec9de63b2500b. 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/IL1012400808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c01f1b280a6e83ba76d502df6ef4367ce29bd6236b8cadc4da2c085493c361. 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/IL4432100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d982764df4d208e8356db2df1b50487d8147f81e4ff51fcaa325ee90c55d548. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IL4432100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360d51b3bbd16e5cbcf1ba1dce6b582e2049780655d483c77ddadbe3a293e030. 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/IL4432001634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432f41df05257262e14e20b648831b37d6bf629cab40ece14bc6dd8f21b7f06d. 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/IL4432001619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9739ce450df49c7452a2ecfa93aa99c34cbe32ecb8b3a73a54c4f08184ff805e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IL1012401830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49539f2897d5a36a245687c4f6f3d1ff33c6c41905a4c785eee529056d5373ba. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IL7532313431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f6fff87af08844466133d8bd4648c11ca0e915cb32ebc299480f2205b68ed1. 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/IL7532313442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a899b313127238916451a2a2fb8571823603ebb9be7821c12384ada36e3cc8c. 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/IL7532313372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9542df949a5932a3d04160958f0425b9306351fa366c60f0f0a21d781785be6. 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/IL7532313408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8457251607d90e6f708aba9c12cc05e6f8b082960a98afcb943ed68bc901de3. 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/IL7532313444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33877c4d076fa719446b7592d83a2b7b04ab39cfcb2a08b4d6c8111987396b4. 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/IL7532313443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7312dec31ef8bfda9812810bfbb9c25dde19e8a735ffa3d18ee68ce70ad3360e. 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/IL7532313393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938ebc86cbedaa59584745d9858890c4287e67909dc42e2edad19ce5cafa8bca. 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/IL7532313191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3670a56ab838afea323a81537a48a93f7076c8b3ec4ef4e313b1d10637883905. 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/IL7532213213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aca83e84f52c9c13c3241fa9662b997673b6e3c5e5ba3cd03b14329ea31bc78. 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/IL1012201576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c226cb3d59fd17882488397bf743424c477844d5adddc5b64968e879f3b2909. 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/IL7532213119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef88ee4bc1bb90af47e6b88567c1165a33e1ea85b5fd04112a5996e92508d3a6. 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/IL7532313061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f61e1ebaf01fa97385abfc76634aa1e45b882e6b8cd2af6a610860bb01995d. 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/IL7532421417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa716b20867450a21fd29cd134676b85277ad616cd06b9266fb05da6b9237e0cd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IL1012500163.