A limousine ( or ), or limo () for short, is a large, chauffeur-driven luxury vehicle with a partition between the driver compartment and the passenger compartment which can be operated mechanically b
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 0x6618b3a333b5e317f91ea858b7eb1afed2f4685d1f34e303b3f8c1de7eef71ff. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81b91244-dd4e-49e0-9ff5-71c29c6441b8.json and https://artists.proofprofile.net/proofs/artist/81b91244-dd4e-49e0-9ff5-71c29c6441b8.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 0x783666c2ed8028f889bdf6ceb2cb1c11069a86a0a1553eb0faaa4a8bb92b38d4. 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/FR3PA1100300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d7c6a4b4dc33cbb6a9c2f4d9b9a58e0431a11ad22de78da8934345fd8ea16d. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/FR3PA1100310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9743d5883a2dc0dbc88d2b3c1a3a563e0b36f278307b0e3e308ec082358245b2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR3PA1100330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3fe35a493e86c59a8233a763093c4d73cd721c1e17cb9289684e0b5cd708a5. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/FR3PA1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cb3dcc70a70ebb6cd910dc11f0360d3f5a99d26affcded05a14b3c40f215c1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR3PA1400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef25a88ca56d122e1de06e346c510d512c84c33a0bcee07d2d8e39ea90627c1c. 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/FR3PA1400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ab2fd8efcce511d9485c7ee841d527e4f384f0c6418e7b43f9ff7726db92d4. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:06:51Z), 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/FR3PA1400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18ec124f5da2aa3c12936b959c57f9ae3054634deaf34d3883ad0181dc7e299. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:57:35Z), 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/FR3PA1400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8d89ddab011fb8b9bb3b2d08f0007896382988a5bf64f400bfa7dee855e86b. 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/FRY397206992.
Thème des joyeux inquiets (Bibliothèque)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbaaa0795808de1d2c8a6193de2eb545200f03313e3588f1db69fd7196e80061. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/FR58V1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7397d366157419002bdb6d3afed2af02e5ac1d011162884bbce4cde8bcaaa9c0. 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/FR53O1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3561e3c81fe4ea7e63c2d5c36bbfcdd2263df0418704088c3870912178702dac. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T10:59:03Z), 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/FR3PA1900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09920a0d1cb9c0967b3b2d886c2c83fb9a5a46b86b4865c1d2ef1f443317dcad. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:09:05Z), 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/FR3PA1900070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dc7732ede94331ede1ed813e488bc13f6949629bb97028656df4d9d1ca81e2. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/FR3PA1900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28b01ee8342932c83c8765444feb43094a33f5d9ea035fc2dae2368d73c0d76. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/FR3PA1900140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364a122285cb54bbaedf88e0d2f9d128a514202b527555bb3dcf5f655e7dfae8. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/FR3PA2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1229be215773685b4e0553dabce2da3668b003dea6a3e081962aa388b4aee2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:29:10Z), 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/FR3PA2200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52dfb3aae4cb019657ccc0e5e203e5dbe5d75288bc4a37bf3e37feb132f8f76b. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/FR3PA2200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c63d867914df5b135bd614da4b63318ab5feb9163adba088ce37889f6f5d3fe. 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/FR3PA2200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b751d2e6d19b147c0d115702790f63ddd0d2bc96c69fc41b088d02b71afbda. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/FR3PA2200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e837c83f4f6ac3c43f9aea1c33fc8f25583597d89e013e43b30de1a2176e42a. 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/FR3PA2200150.