Amaru may refer to: Places Amaru, Buzău, a village in Buzău County, Romania Amaru, Rimatara, a village on the island of Rimatara, French Polynesia Amaru Marka Wasi, an archaeological site in Peru
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 0xc3668adf333b5b5d77c24ffce7471ba08681d801330cc9fa8916d1f497e9f5ce. 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/d6b0d7ab-8ba6-4ec6-938a-73b706c4ff2f.json and https://artists.proofprofile.net/proofs/artist/d6b0d7ab-8ba6-4ec6-938a-73b706c4ff2f.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 0xb626cfe85674bf6e3e90543054ac5b6cc4a21cd94713bfd24a0bb8f12820b6c1. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/SE9822062242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2718846cb0c65fe0f84ae976210c0a012b7e1771af8aaff198169108d9e7d0. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/SE9822062248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9690fda89dfc088a6207c1a4354bf08a08d70de573b3978b7cb56b02822400. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/SE9822062197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8fb217d6960041d967d5905697593f416c1e88ae45b252f689bc344723a0a0. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/SE9822062198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7d41afc4986db18e3ba0066faecbc84c40b20cb170230b85c6a5e40ced11cd. 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/SE9822062201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ea9e4201c4d7dbf714ce0f2df323c5315a9d2e2f5f9dd28f717e91d85dc5da. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SE9822061932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c128a3fb5370cec99602eca459943d1e9b4271c72a7813edf4c510175a4d9c0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/SE9822061933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d581ddb563c0efd47131a51926e19d988b756dbb6c1852e878d34e797b508b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SE9822061926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f788dfb2c2a513e9a66557eb53083923750fe19b784a09f1d97e0b5af093b8c. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/SE9822061930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68f6553287095a7cf674d40fe98b7132a0adf62cf67aa83c68217d0d5ccf9e0. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/SE9822061931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5a72a2a9358845f45b321e9e3c1cb15b4103be2f018019ba01efeb265fa7eb. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/SE9822061897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b03475531a8e8f7a56685a04299cf529801e2d51b618e1b404e1088bce4a6ca. 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/SE9822061903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ab45c2110798a7af10aa13a836d18e92e3711afca0ba0bf54ff3971ea3e734. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/SE9822061905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb9abd187cf02ff2c96319db63672121687b6b1016e877072cf3a55c2611638. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/SE9822061912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7289091a80cf63085ef48ac778dd0f1c1d7a19c411c948908668716421100a09. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SE9822061915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60592a7328c1acf8886b14d97c0fef3489793721b9d8571da7aac74c1966e148. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), 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/QM6MZ1962550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388f1c87a40ff580936e69fa206647569f27daab1be0161e8ed8ef9482071487. 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/QM6MZ1962553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b717e3f6964e6f4a0e9368e845bae9c4c53e916b68005e1f0dcace862b5ce1a. 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/QM6MZ1962556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8001b1464ebb718fa2365e7753582312d2a90e46b9310c41e7087d10c22868. 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/QM4TX1733761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0ecf7e3ec72bd3c56ea8ad932456bb849dd17807c4695e705befd4f91a622a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SE9822062223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e703e202145b2750d52fede1ea8df77d244f887f88fabcd5a4ad5f825a3ea6c. 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/SE9822062225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c39953d6d0e57400526ceaf59bbed259c9dbfde9925f283dc692483f6b76b8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SE9822062237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf455c4d848b59882240b9edad6a9b7a790a52d09b46d47be7d4e99b04125ab14. 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/QM4TW1741361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe5a478a21f2e66c7e3ce81d193db55cbf7ed6a0f2ec21f4dd7e138c918de67. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QM4TW1741362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbaa1e7e64e36da00da23dfbbf4a43b26b780d66cd029a18cca2d001dd40cd97. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QM4TW1741365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657238a639547cbbbcf01ab8dce15d343c20bdd61c2aebd523a3a4b08fd8449d. 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/SE9822062185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fec379f1964c5a9b2dd12ca87c12f7d3435bf825e94fca82dd44dd204b6202. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/SE9822062190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4878b3c0b42673beafb90126b465a2416a134b944ceb9a4c08d444e2956d499. 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/QMFMG1529631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd060be852cee683cd0a90fdac69d6a3376e2f51d922465d798bbc0999ff8830. 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/QMFMG1529632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb10aa4c37018eb1806a2d269c860faa13600a3b251c8fef70e4e30dff3997b. 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/QMFMG1529633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb377d9661b88e7969c0f3bc7a67cbcabe6988f7a8056bb36a5387d7b8761891. 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/QMFMG1529635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1812f92dbbba66d63e546cc9f4404febefc5db79d4180b779fff2ef147ec621. 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/QMFMG1529636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3a939b413231fc37f3144d909c1d5a7b30013341c83501e011851dc823c080. 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/QMFMG1529637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd59a0ec8ae4187898ef0d79f46bab74466fd3da4f63481264b06c6e6b9afda8. 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/QMFMG1529638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff45fb8da6248b92fed3e692ec3f841a8334adb8183f10db7dd1ebfec50fa66. 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/QMFMG1529640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29acdc9babfbd7cec8ba833e2305015e6552a99ff6ae34decf10b3c19feca55f. 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/QMFMG1529642.