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 0xe78f03caa4f83886d6da4cede3464b1cd91fb560375549989ca90052adc00e90. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92fdae0c-edfe-4025-b727-f2d60c99df52.json and https://artists.proofprofile.net/proofs/artist/92fdae0c-edfe-4025-b727-f2d60c99df52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Most Beautiful Hour (From the Songs of Yotam Reuveni)
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 0x1ed41de750dccb5d8c56614bac7a302576fb62fa773d0bdb87cf22c2eb550fbb. 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/IL6191700485.
מכונת הזמן (כאן 88 עם שירי ראשית המדינה בביצועים אלטרנטיביים חדשים)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef6aff43d8319e80eab05e3322900d1d84c2401f421cf417c1d66b623ecbc9f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IL1021810272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f92361c7241d6326c450a3b1e2446e6b95d1ca34d137cb5eac35e3a0630682. 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/IL6191800353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6678f8bb733a058dcdc727ab2cb75bbe762242a885c3c49444cab715139a19. 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/IL6191800354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c54a9b9d5373e9ea080e0f45fc231b242a94b538921e5ae92683a1a9f54bb4f. 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/IL6191800356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830233b5aea615df8193fb7360be5b80db386c128f91d461dd266ec1897af69b. 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/IL6191800357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e91d3aeb44162cc7d84f110ac0ad8121eb020baf5c4b1227203b495b444bcb. 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/IL6191700693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f95b6311972e76efcc6bd3806fc89089ca141f29cff563b38172f7868c52c6. 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/IL6191700798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad872fb29529678f861067e70d2dd4f8662ff53e1ec6c64740f5f791f50e04b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/IL6191700800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8931e928ffd074f92ca157f0b17b2f396c599b38ae6ae0093e09c02508739dc0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IL6191700766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3732775eb2e3823210d2f9f7b024ca19c2111cd7b0127c8e0781fa262c2c73. 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/IL6191700768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a2eea1f9ceb9b6910f100edf06a4941fb476dd061e568e95ff5d20a2b8814d. 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/IL6191700801.
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 0xd08cc8a5de5035aaa17306b909ca0b472402764686b1cb100b2e3ab7847ce633. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/IL6191700799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c3d7872cd42f5641ac9ca7b8b321da6241920faff9ad558a720c81e989c0e6. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/IL6191700767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19d02710ae0259c5e185d8e2812ea4cfc55c21dbc2ec745063b496fa8126af8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/IL4731100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187efbae61d1640b8e9aeb37490c92302991e1754c392c6afce023e1cf844c3a. 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/IL4731100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79ad82474600616b056a1956e68261218b3e4b1a4a42b3552ba0b262ad872ff. 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/IL4731100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefd1cfde779b6021deafb18a40642d9ad296c97dd27f52f16990ae3848c1660. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/IL4731100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab625c909908fd5ebbe54535d2ac145d026e8f3bbf0a62d8e81d1e74a7241d50. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/IL4731100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a4829b617622abf654d4f353a752210d9e3ccb211806c802d5244353fb11f3. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/IL4731100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e3c4c8e57d3858ab8c2d7fa043334c0152e91ef02081513b456c22e4b22952. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/IL4731100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89149c4062bf53dc5f7da824859df8b6c3d0055b9fd06ef2c316af382a478de. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/IL4731100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34e5a9efda8bde33f4c3d1053aba2c21bedb0ce5978b79ceeec83aa698317a0. 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/IL1022112201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3342c626ffc2902b2210dc6bc9ac4e19502c07e7cf32510ebf5afe22ea2fe439. 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/IL3601303020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb7c6b4af772813166453975a712e288ad025d28c9f3fe7857f5169fffad26c. 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/IL3601303030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951ea5704657c63877e19babf35f46e97bfe966fb9fda6f8df2b2b395b01229b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IL3601303040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2a997d0d64fea6f1242da372b70054f0e80b60afbd706476794d460e635f89. 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/IL3601303060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90db71ff0b23d7be5ecab53f9ee07f7873f6c7e25730a05d2457209a1161ffcb. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/IL3601303080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbcf1ae12d06c77c6d8b976c0a6d170ac909b89a8c3b1c2f16a42fc4632dff6. 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/IL3601303150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea8eb5ea44ebdc454fe73420a4404f34d2cff9983d05b6ac6074c2da27e5fff. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/IL3601303160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0780af7f1cff9814c7502687e4c4c0e06655d050ed826201a9d8bc315650293. 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/IL3601303170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd13933a2f9feffc0519afcb1b693bb7c09420afaa3692be39bf4cf58bb7d2bb. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/IL3601303110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bd5af8c0ab15e662a96e6828ccedaf8f8b2c585045549e66ba1a1c48f352be. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/IL1041401497.