The hamza ( ) () is an Arabic script character that, in the Arabic alphabet, denotes a glottal stop and, in non-Arabic languages, indicates a diphthong, vowel, or other features, depending on the lang
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 0x5173fbbf6849de61220618ca28ee6fa67a145614621aad26f6d315e3857af006. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/360b2972-33e4-4031-a664-f2ef9280453c.json and https://artists.proofprofile.net/proofs/artist/360b2972-33e4-4031-a664-f2ef9280453c.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 0x923217db58d3c91dca4db7a9a6924827f6142843babf30bebd44cef2c51fc538. 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/QM2PV1620757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb452e15bacccad986f2d4ca3a44e640d4922bd4583b7da4eee19fbc87b2658a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/UST8K1603308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217f720b91729d5ccbdd6a8978cf7e322ecb8221d1ce8b1e3738adb69f7c3199. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:44:49Z), 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/TCACW1730346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0b69dc2a29e1623e9fff7aa6d12ea35146f0b112c7054d8368203a1b7851ac. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TCACW1730352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf571c984aa244799a11e98f213e773d772b04742287f080594a7429af2c77ed8. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:43:43Z), 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/TCACW1730355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4027e4e62a66914171e702f470e1523151e99cf7d0259f0bc612963eb2c5e5. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCACW1730356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8498ef6f4c21b2ce34ed9c70c8965a6a05459e280f4e71ef2962031a14691fc1. 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/TCACW1730361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e37ebdee59cd8a8a3bcf5d459e5fd34d45327d27a89abfcbe17e1651a9321c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCACW1730362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8170eedcb17755393a4483643c48234825078cce4e8fa04fe9959b39b7ac2373. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCACW1730366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d1fca2661dfd31d538558834947f9882bf979021ae8a2f6bb8ac2f78b44c7b. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCACW1730367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c562337104c9c9f01eb10b42861c1de6302abb6b0188ebc21f37b983f9c2e1. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:05:30Z), 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/BE6GM1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e3c501a5fb5011c16789dae8fe0b40e24cb10d9c18e32f25c3d7d95ca824fc. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BE6GM1700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b98907803a4d09e5ee8bd2b3d4e0e7651424d93dd6897464909840fca234fe1. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/BE6GM1900246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9d6f7ae1ae75f3cd1b8130d66d56e86e924df9cd251ac91f0532f8ac117109. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/BE6GM2000276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e47ac3954d5adc5ec4a3fb0adea9f09b15fab5ca5e398ec4bf905770fdeebc8. 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/BE6GM2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f09f17af309edc0f5887750a7a8196d4f2a5a2cbf8609d7268e8fc6c4290457. 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/BE6GM2300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5936d7366eba9ec4e02faf70371b5c4af9c5eb1257e03bad16a6dfb00c14d1b9. 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/BE6GM2300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2aec8a4978ac91522ef2313031fdfe54e467baa30aba4082ba9fe2c870a0428. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BE6GM2300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6f530056d38e7c9a410b19c19872cad59144d0f389ca62a712a01551720ce1. 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/BE6GM2300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a479d0ad25c9ee33040be976ef261841246841e4f39e355ad8ccad451d8752a. 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/BE6GM2300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaff3ff8c1d1b0cc17be12eb9c8887324950e2cfeb198640e98e8ee10e282616. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:40:41Z), 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/BE6GM2500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136ed5d861868a585760de4e87d57f9bdbb6a8e9b4e8392db6b4134467272f3c. 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/FR9W12347695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089b4f784b13a2d2a0ace56384ee0105b61bb043239d149e550a847f88588ec2. 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/FR7O52300860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33329f00198092a147c80f12bd5087834a7e4c1e9a1a806f89436a6d48f4582c. 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/FRDN42100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8225349070a78d80006ac198348209df92d12090289d9c4de97a68d19534c1d. 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/FR9W12111719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a177ac091b7f352c7cd4b81ae20ca25e8c01073cf73b9345655515ed6ac928b. 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/FR9W12135291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1e248251a3cf6e086ae62204bf51f640af417f4ddcb76c5f85f7d9a67f852e. 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/FRX201802694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082eef90ced24be17a9f47141c70cf4c6cd2aef92fa509a2306badc62e2d4b21. 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/FR9W12135999.
No Borders: European Compilation Project
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f078a3f2b9ae6edceb20a576b79fadb9d0825b37a0be79f35678ba8b9fd8923. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBARL2202347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f078a3f2b9ae6edceb20a576b79fadb9d0825b37a0be79f35678ba8b9fd8923. 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/GBARL2202347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4465311c68d25400bdc276dbb6b7d742ba699c2079a5decbb756568fe38619. 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/FR10S1828094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4465311c68d25400bdc276dbb6b7d742ba699c2079a5decbb756568fe38619. 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/FR10S1828094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1739ba71dd23e65b04dae7fe86b6cb997f35150eea4310d0ea3cbfb920d1604. 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/FR8Q11600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a9ffbd0d6402db50d8d34f1b53baf752547ec9249434699bd95344ca61228e. 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/BEEO71800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbaaf20ed9397da477d5558b610ca0aef985ce4b3087882e5e38bfd15f52687. 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/QM24S1912430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb090f145d808416d50d23e9ed77c3ce8956216ebe380e531c749cb324b23bff. 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/DEA621700930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa46e6d974d1ccc5b65b40c09697a6fdf74bda4196023b27602e2934d7b08b1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEA621700934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dab5c38aa4d3d058f84ab761471c1b29e7c2bbca6ed0ff516a93f398a33176a. 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/FR9W12346718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a20ba9cbcfae4119be7ed381df5a0e48af9b1aeb737228d2655010082383755. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:31:43Z), 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/DEA621700952.
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
Outta Control (feat. Hamza) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19f43f521195a476cf9a5eaeb66705302e0fb1637a0b3e2545dd361f3736aa1. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/DEA621700955.