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 0xc486ef4e264b413151335dab2f7a65e69fe00952b3ff8d1eb4ac846ad1ccaaee. 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/3ed3659e-b5fc-4ae3-842e-c732d6a8dc02.json and https://artists.proofprofile.net/proofs/artist/3ed3659e-b5fc-4ae3-842e-c732d6a8dc02.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 0x20bcaec27118ed5c7969493b5cc379dd475960fc544a171e3fd141f222df3eef. 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/DEMQ11600402.
Cappuccino Lounge, Vol. 3 (Relaxed Coffee Tunes) [Compiled by Florito]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcbe4a1af78e63ce1f31d08d004fe21e0b97515741fddc9122659ad2908f04c. 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/DEMQ11602146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb0fb80d45c1092cdc9fea03b95a9dc39bbbf05201c488ddaac73d45acfd76f. 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/DEWD61803213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c632973615daf6afb78daa2ffd0568a6bb3f7e34261131e04c5f174747e6a4. 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/DEWD61901376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9933884dc81dbac2ac7bf83f57cea94e39a0b6064a556adf081db2acb350fe4d. 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/DEWD62100506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cffabb11bd41c0d237392ca8303203c60f7edb43ddb4da24c1685635d9831f. 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/DEWD62000524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83926afce64f833be628c0affbb1f8f7b34dc1f68dc35e27c0a039896a61267c. 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/DEWD61901823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1558572d0f87ca1c57cf83af23ffcea1d0a90b7c3ae643e64abb49cb1aa235. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEWD62001039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0fd1f23aa2921ad94bbe662b4ab2a10326cefad087dd5580836bcabbddeab8. 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/DEWD61900083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5467c384fec633a71a0753dea6765ccd64a055ed2fa3ab36f58fb51368eee9c9. 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/DEWD61802848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3c1c5ee83676981ac6ca7a8d54d2d90e565119ce11de1437a57114386e017f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEWD61902288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120b1c8a19345af16224da9d5ca5e5cfda54eaa9eb264ea62509cdbaedb6ffc1. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/DEWD62000526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796621c0a1ef5823200779a929a4daf8a9d02efbdf2fc17ffe48c7913b96b1b4. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEWD61902303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe794a19409fb5419d71555916c18eebcf9999b8a0eab31bae90b66844870c4e4. 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/DEWD62000143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c98581a026958eed3535e1caee08de487b25642ed589d54f70cebfa65562b4. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEWD61902428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1182c38630727e8c58babb3d957b3110e6d0f030c3fbd4e0ee66c0088aea0e. 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/DEWD62000513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99ab2e7fd737ddf82754ecdb5cd8f94eedf7b13cd4bae5c881cf067d2bc7f16. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEWD61902399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530cdc8393b2a72efc2844fc725f8c897b4dbc1e705600a22a18f99a04e7cad3. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/DEWD62000129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdb8dc24d3572eeafc298eb1e1c99f4a5e17367d16f172a854f287309327b0c. 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/DEWD62000264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1aed498c8188c7c68ac3d5c8617a868e245630cccdca7f330f7d9f78662d26. 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/DEWD62300381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cfba87d02dbb5d5e02e859d9c73badd148ae57d1516f1e17cb8187074f77d6. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEWD62300386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75a08b9a8c1852425fa748eed57019a4795d7e32ed22adf4c3aafa2f741e244. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/DEWD62300387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca569abbddde235f6e1534aafff17b9609cd587ff6d8894cef95398b05820f7. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/DEWD62300388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc569f82ccbea5317740ac0a2b548901594eda3a64f25964f9cd582cefd5872ad. 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/DEWD62300389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e676549b9754805177a98a11d6fa46ee506866bf15d33f0025d70c2ea9d966e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DEWD62300390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fb935ae5e15e47d4bbde2fd92b7a35016287e7b78d98698490cac31399ada6. 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/DEWD62001213.
Have Yourself a Merry Little Christmas - Feliz Navidad Genuine Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263c1d7a7f21495ac6cbb1fca000d8c8d6222b51b56c60072f50222c6759138d. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/DEWD62001229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfd2b3f3d5b0d7dfa5a3d5a87398be6b69485092091d41f2332c2654827e972. 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/DEWD62400250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c7ba38697a976fd220b356e0d0bf852fddb21bc017e4baf85b790958bdfbbf. 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/DEWD62500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6338b29bf88be9775f01e00478a385aaa78ef027a36e521d9efb95d3509ad0b. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/DEWD62500067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5ce9beda77619c9a8e9bc1c13f99337b7ca3817a774b6ac731df530a9b3d98. 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/DEMQ11800226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1adf5d5aee3f00ffaf3ef88ff34fcd1d3a651cf899c39e7eafbba277c03702cc. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEMQ11800199.
Christmas by the Fire: Chillout Your Mind
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c5a3cd5b94a455d92d604153c27bcffe7798fb438fb5140ba7a05593b3a463. 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/FR10S1664163.