thumb|Kos Minar near Ambala along Grand Trunk Road in Haryana Ambala () is a city and a municipal corporation in Ambala district in the state of Haryana, India, located on the border of the Indian st
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 0x307c897e622eaed2dd4e705ca47a6769a4abedf70d709b0a8b0a6653d2fc04da. 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/1f6c8b2e-67c2-4376-884e-ade7c18318fe.json and https://artists.proofprofile.net/proofs/artist/1f6c8b2e-67c2-4376-884e-ade7c18318fe.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 0xf7172343393bb08920772422d003001f810b9fae998e07d5bd30bff8607de309. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/DKAZ71607804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2bac2a9002724a9c592145722bb3322701e0bf5dd50f4b0b316ad586bc0cf2. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:34:16Z), 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/DKAZ71607805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376087b03fdcb02abeb18d1d06b8f3ea8997f9d441e2b6bdb8491dd2b646c6cb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:43:07Z), 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/DKAZ71607807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10878e1754e8059b543817d6c286e1ad7efd88f9f7459cbe8438e7458c6a41c. 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/DKAZ71507801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda81c9111b324ef8887a64429000cf384bb51008050885254fa7f55e61e753fb. 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/DKAZ71607810.
Walk with the Dreamers - Leo Mas, Fabrice, Giorgio Li Calzi & Luca Donini Dreamers Dub Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda289443382c6260d9bd9781b084a7bb6fc2d846914f2b62f902d71049bf5a8. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/DKAZ71719603.
Walk with the Dreamers - Leo Mas, Fabrice & Giorgio Li Calzi Instrumental Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58729e19a3100e3e2053889b759fe093db2ada16d2f329594f3bfd9212c38b7. 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/DKAZ71719604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa4da110f96d40d836dd853fb35f83a1f98f4763b8a7a28b97088c72639b26a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/DKAZ71721802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38545ff8629f07841f8cd5108c7d9e383ced6544c81fd05c12ce2f163a5d079. 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/DKAZ71607801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dff32cd03b78093a5f5b2b4d6e1016dc770c7220ce2bcb93da6e81abb95f520. 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/DKAZ71826901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e92319f363c72eb140fc1f62b0f0e22a5047672a5034c8eb985f0712c835acf. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DKAZ71918703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f7660b6e540a2203a12f10057c1bae8196ee8810bc584d7c248a8289bb89fa. 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/DKAZ72329802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4a3eeb0ded71b9e5f8a6637979ba8ac3cf43282e63035636a26f1a33a1bf90. 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/DKAZ72329801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ae0b5c468f0c5c1676311b43d342500d0fbe2d7ba242e5114eb91a0edf6643. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DKAZ72329805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6452905d53447f185739f1911d092185e3767dccab3dd21fca8324b2ee7ab88. 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/DKAZ72329806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f02c719c904664815bdffbff29cb5e27e1a6a4ac1ade1a9657f8724c8cb97f. 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/DKAZ72529811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4a3eeb0ded71b9e5f8a6637979ba8ac3cf43282e63035636a26f1a33a1bf90. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/DKAZ72329801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ae0b5c468f0c5c1676311b43d342500d0fbe2d7ba242e5114eb91a0edf6643. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DKAZ72329805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6452905d53447f185739f1911d092185e3767dccab3dd21fca8324b2ee7ab88. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DKAZ72329806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366fb5cc43f63f6ba5abe1220ea6e1263a33b3e4c004be95e428b92c5160c9fa. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:06:24Z), 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/DKAZ72329807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ef34bf285dd5a336bf5bb6f13d89f6b559b0d098f93bc2ad2e56b624e783aa. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/DKAZ72529809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f02c719c904664815bdffbff29cb5e27e1a6a4ac1ade1a9657f8724c8cb97f. 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/DKAZ72529811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097dd63f0c70194c8f6ae273d55e9a13a003e3377bae2f371205f87ad20abf9c. 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/ES8741601107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4a3eeb0ded71b9e5f8a6637979ba8ac3cf43282e63035636a26f1a33a1bf90. 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/DKAZ72329801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbf268a4edba17053130618a1932c26ed2e79b5be86fa194d4508e98b9dc7bf. 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/DKAZ71818701.
Walk with the Dreamers - Leo Mas & Fabrice Extended Remix Feat. Giorgio Li Calzi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8a9baa0b1025ed704c68059424d8f44dc36b7c0569dba2918743e1f4d57ed6. 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/DKAZ71713706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb95b096574adeeba46415df36bb5733e3304cc996d088c6b5f457dba468ecb. 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/ES8741610115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047c805b4b8ff100908be30b4b2eeabcc2a5222b8b9c72ab77c21dbbfd84dbc0. 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/DKAZ71507802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa380f494e062aaf9a60e26fbd14e7e0cb9b7113c47da3667cf0333e252180ba8. 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/DKAZ71507803.