1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7138fe68dda58b3bab9fa78e08214e7e48f94bfdb25bea2706401654ce48ed30. 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/74943299-31df-4faa-ac79-7b558ab9936c.json and https://artists.proofprofile.net/proofs/artist/74943299-31df-4faa-ac79-7b558ab9936c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Wonderful Thing About Tiggers - From "Winnie The Pooh And The Blustery Day" Soundtrack
{"copyright_id":"0x599ea9d78cf60e1dd91285ede51fe662693bb38641b419dde2a36588aa589313","isrc":"USWD10210159","name":"The Wonderful Thing About Tiggers - From \"Winnie The Pooh And The Blustery Day\" Soundtrack","registered_at":"2026-06-04T12:48:11Z","spotify_id":"26pgDPmuZy1dmC14jxAdA0","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599ea9d78cf60e1dd91285ede51fe662693bb38641b419dde2a36588aa589313. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/26pgDPmuZy1dmC14jxAdA0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/26pgDPmuZy1dmC14jxAdA0.
Disney Karaoke Series: Christmas Favorites
{"copyright_id":"0xad8dd6c96320b73d5a8465fa76db3dba71d0b18363c1c77f3ece0fa399314af3","isrc":"USWD11158377","name":"Santa Claus Is Coming to Town (Vocal)","registered_at":"2026-06-08T15:07:10Z","spotify_id":"4CHvC4hCpo01PUNmZ3cHnt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8dd6c96320b73d5a8465fa76db3dba71d0b18363c1c77f3ece0fa399314af3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4CHvC4hCpo01PUNmZ3cHnt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4CHvC4hCpo01PUNmZ3cHnt.
The Wonderful Thing About Tiggers - From "Winnie the Pooh and the Blustery Day"
{"copyright_id":"0x599ea9d78cf60e1dd91285ede51fe662693bb38641b419dde2a36588aa589313","isrc":"USWD10210159","name":"The Wonderful Thing About Tiggers - From \"Winnie the Pooh and the Blustery Day\"","registered_at":"2026-06-04T12:48:11Z","spotify_id":"4QtXzxkwbfuQsY5d0U1DYS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599ea9d78cf60e1dd91285ede51fe662693bb38641b419dde2a36588aa589313. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4QtXzxkwbfuQsY5d0U1DYS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4QtXzxkwbfuQsY5d0U1DYS.
{"copyright_id":"0x599ea9d78cf60e1dd91285ede51fe662693bb38641b419dde2a36588aa589313","isrc":"USWD10210159","name":"The Wonderful Thing About Tiggers","registered_at":"2026-06-04T12:48:11Z","spotify_id":"0vV5l4aaNQYfUUA2PXWEbp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599ea9d78cf60e1dd91285ede51fe662693bb38641b419dde2a36588aa589313. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0vV5l4aaNQYfUUA2PXWEbp.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0vV5l4aaNQYfUUA2PXWEbp.
(Your Friendship Is) The Best Present Ever
{"copyright_id":"0x87c4367e9e6b36039dc3fc9111daa4e4612b7d3162982a106e9aadd8e8e0d700","isrc":"USWD10220330","name":"(Your Friendship Is) The Best Present Ever","registered_at":"2026-06-27T18:20:14Z","spotify_id":"0NLk3m5pMRcuz4rvJ2Ejyc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c4367e9e6b36039dc3fc9111daa4e4612b7d3162982a106e9aadd8e8e0d700. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0NLk3m5pMRcuz4rvJ2Ejyc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0NLk3m5pMRcuz4rvJ2Ejyc.
The Wonderful Thing About Tiggers - From “Winnie the Pooh and the Blustery Day"
{"copyright_id":"0x87c4367e9e6b36039dc3fc9111daa4e4612b7d3162982a106e9aadd8e8e0d700","isrc":"USWD10220330","name":"(Your Friendship Is) The Best Present Ever","registered_at":"2026-06-27T18:20:14Z","spotify_id":"4PRmBqcJZp0rh53NZhAbjj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c4367e9e6b36039dc3fc9111daa4e4612b7d3162982a106e9aadd8e8e0d700. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4PRmBqcJZp0rh53NZhAbjj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4PRmBqcJZp0rh53NZhAbjj.
Nothin' Can Bounce Like a Tigger - Original Version
{"copyright_id":"0xc5feaec42195dea0c89c1fa0f4c35160b5378b4bdb6a2322ab3c2914cf921e05","isrc":"USWD10935812","name":"Nothin' Can Bounce Like a Tigger - Original Version","registered_at":"2026-06-08T22:50:34Z","spotify_id":"3BIOc2gv932mj4Olf2bQYg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5feaec42195dea0c89c1fa0f4c35160b5378b4bdb6a2322ab3c2914cf921e05. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3BIOc2gv932mj4Olf2bQYg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3BIOc2gv932mj4Olf2bQYg.
{"copyright_id":"0x473148398ba1e487432b47369b52523dc5a5d0a8ff00e3acf70604eb6c7b791b","isrc":"USWD10935813","name":"Square Dance Song - Original Version","registered_at":"2026-06-18T05:26:30Z","spotify_id":"6nGWeEaibcA0AFpn3ggW7E","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473148398ba1e487432b47369b52523dc5a5d0a8ff00e3acf70604eb6c7b791b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6nGWeEaibcA0AFpn3ggW7E.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6nGWeEaibcA0AFpn3ggW7E.
{"copyright_id":"0x6414a38f619e785a4916b2250d9c72a5cf75893c515c76b9faedb469e1b0a98e","isrc":"USWD10220375","name":"I Wanna Scare Myself","registered_at":"2026-06-22T06:38:52Z","spotify_id":"7pvlXWhbPUkGmhspCJ49Pn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6414a38f619e785a4916b2250d9c72a5cf75893c515c76b9faedb469e1b0a98e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7pvlXWhbPUkGmhspCJ49Pn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7pvlXWhbPUkGmhspCJ49Pn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6414a38f619e785a4916b2250d9c72a5cf75893c515c76b9faedb469e1b0a98e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1rd06xXXXPuZsa1u4K5qwF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1rd06xXXXPuZsa1u4K5qwF.
{"copyright_id":"0xc5feaec42195dea0c89c1fa0f4c35160b5378b4bdb6a2322ab3c2914cf921e05","isrc":"USWD10935812","name":"Nothin' Can Bounce Like a Tigger","registered_at":"2026-06-08T22:50:34Z","spotify_id":"1tpcpW7hFitIJA9p3AKlZC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5feaec42195dea0c89c1fa0f4c35160b5378b4bdb6a2322ab3c2914cf921e05. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1tpcpW7hFitIJA9p3AKlZC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1tpcpW7hFitIJA9p3AKlZC.
{"copyright_id":"0x705234b49d47d96743b20b77edfd62d5fdd592beb4e44108f9e513afa5f8b401","isrc":"USWD10321049","name":"Jingle Bells","registered_at":"2026-06-26T09:16:15Z","spotify_id":"4NCgBOjkAAVGTzLrQqUSd4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705234b49d47d96743b20b77edfd62d5fdd592beb4e44108f9e513afa5f8b401. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4NCgBOjkAAVGTzLrQqUSd4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4NCgBOjkAAVGTzLrQqUSd4.
{"copyright_id":"0x705234b49d47d96743b20b77edfd62d5fdd592beb4e44108f9e513afa5f8b401","isrc":"USWD10321049","name":"Jingle Bells","registered_at":"2026-06-26T09:16:15Z","spotify_id":"4seDIjnmJ0iGMiBDD1RbBz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705234b49d47d96743b20b77edfd62d5fdd592beb4e44108f9e513afa5f8b401. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4seDIjnmJ0iGMiBDD1RbBz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4seDIjnmJ0iGMiBDD1RbBz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25446c8688cb977b831696406fcbe0db1543f08f46cc912395355f9635c50be5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0IFUAtJeHQxq0Zq53vla2c.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0IFUAtJeHQxq0Zq53vla2c.
{"copyright_id":"0xa63a3e72fbbe6791912b6c92360b55a84050ad67402842d24b1a0524cf722cc0","isrc":"USWD10220385","name":"The Wonderful Thing About Tiggers","registered_at":"2026-06-11T06:02:49Z","spotify_id":"2E8Kok5Q0jCAR5d2wGYxfg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63a3e72fbbe6791912b6c92360b55a84050ad67402842d24b1a0524cf722cc0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2E8Kok5Q0jCAR5d2wGYxfg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2E8Kok5Q0jCAR5d2wGYxfg.
{"copyright_id":"0xeefd56c869b0762a4b08a25574805c4c0ae4ecf1a2fc3105bf9e578075886855","isrc":"USWD10220321","name":"Everything Is Right","registered_at":"2026-06-07T02:22:31Z","spotify_id":"4wIIZ8IoiYm7YvLyBCJoGJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefd56c869b0762a4b08a25574805c4c0ae4ecf1a2fc3105bf9e578075886855. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4wIIZ8IoiYm7YvLyBCJoGJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4wIIZ8IoiYm7YvLyBCJoGJ.
{"copyright_id":"0xa63a3e72fbbe6791912b6c92360b55a84050ad67402842d24b1a0524cf722cc0","isrc":"USWD10220385","name":"The Wonderful Thing About Tiggers - From “Winnie the Pooh and the Blustery Day\"","registered_at":"2026-06-11T06:02:49Z","spotify_id":"7tEPLrFXaPYmNcYsU85eHB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63a3e72fbbe6791912b6c92360b55a84050ad67402842d24b1a0524cf722cc0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7tEPLrFXaPYmNcYsU85eHB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7tEPLrFXaPYmNcYsU85eHB.