Lior Attar, better known simply as Lior, is an independent Australian singer-songwriter based in Melbourne. He is best known for his 2005 debut studio album Autumn Flow, which featured singles such as
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 0x0ad20da82fdb51e3f2b4f1efbdb9621b64ddafec551b65832ae658fde9bc1adf. 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/db4a7298-304b-4bed-ad2a-0b29e8c49413.json and https://artists.proofprofile.net/proofs/artist/db4a7298-304b-4bed-ad2a-0b29e8c49413.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 0xc9c888066193de5f1f44091f2a376a47734ecbbca6f63b15830177f4b2b941cf. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/AULH00500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90cb95b4a3011c8e6bd98369c2f08c48d971f0d936d4fb6c7c12be2bfd9bd5d. 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/AULH00500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97e39d87fb98228876efe6f5817bf3e9d104dfe4b599712fc728a829ffa7a50. 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/AULH00500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce8387c4d0ce0824defae9adefa95c8cd0bf05647527fd59e7e73e5429ee92e. 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/AULH00500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc30ff8b0085fad8d00f37763304554a31c51f15537d7f6fce0a8ace34ac85e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/AULH00500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61b29c98cd6de50ea9f3307b42ef801cbb3d154bc0d6e7a1e277e003c991cd7. 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/AULH00800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564b00ac866d8cb68e8d90e9a4e4e80473d160b71d591d60708c09df5607332b. 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/AULH00800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000e7139dbfbe1c29ecfa40a1fcb2b58e7f74fbebf74a920af9eeec0c305d4fd. 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/AULH00800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26a479b41a335ddf855ddb131c0ceb91f93718d37998010c62c0aeac4c11c13. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AULH01000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c77e488990ba7f685eb6ab9d60869708b29b294485fc613101e0bb6248cc7c. 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/AULH01000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f79c7d16f8771e86aacdc3b072cfe29c395d840670c3d994c7af94f88fbea1. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/AULH01000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc30ff8b0085fad8d00f37763304554a31c51f15537d7f6fce0a8ace34ac85e. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T08:58:15Z), 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/AULH00500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1280ddaae45ca86a91ab3520d49c68486363301f3410b97acace41ef1c884342. 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/AUAB01350419.
Compassion: VI. Ma Wadani Ahadun (Until the End of Time)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519332a4df66b1b6af130c45035fd90ab0ece055d009f9c4bbb4b26f8a7710eb. 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/AUAB01350424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a5805bbff6a7af3067a2521adc15e0ad612c28ca173db8089ead7a0a5fd535. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:32:21Z), 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/AULH01400078.
Autumn Flow - 10th Anniversary Edition Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3b91a699f81cf118a1d49d71b8c248d608ddf6c30f6ba52479b388f8beff8f. 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/AUAB01650497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1178aca58e223e5737b8aae585f5605dcad8e6e3c457008fa4ac27e3806e9f. 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/AUAB01650499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67f12a8edf8135d1dfd913472542ff72f91868e7810ec0652977802adec8902. 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/AUAB01650501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a70db212906d4047598b035ec25c8eb5fa04dae459ff5603cfdffcca7605b7f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/AUAB01650502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0bef5efb9d4b4d50a2811f542fad6d82ff862624c26947270c5d7ba5695244. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/AUAB01650494.
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 0x65f58e831f1303fdf9c1ac758c7cd2cdce8c52e11bed68cc1719c148d314b4f7. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/AUAB01650495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f349cc51618339ed54fb9379670a6b302758f156cba6ad9c47f67424c7da069. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/AUAB01650498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29efd94f5733b9ecb2acfeface2ace71daa3cfcf47dc017b078c85c50638ccd. 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/AUAB01650504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b03575665fc263315d9b208e567f8c66ac76c6f20722905812f3d1686e9204. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/AUAB01650506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f1145c8da32ceadb60be159c69fb4a85a5fd5794102f0e2c26747c7f268dec. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/AULH01800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33de7ae6819db8966871b34b98697d9c3ea05d4b9f30d5bb693ee65221d0621. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:03:15Z), 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/AULH02400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33de7ae6819db8966871b34b98697d9c3ea05d4b9f30d5bb693ee65221d0621. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:36:14Z), 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/AULH02400006.