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 0xea8f8a88b80abd69a8793dbc6e0bd390263ad86165131b11c37f18a46d89bd04. 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/99598dac-e6db-4d0a-b8f9-5a4f2f022994.json and https://artists.proofprofile.net/proofs/artist/99598dac-e6db-4d0a-b8f9-5a4f2f022994.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x409f975807f5e5265f8e37080e2e1d3ef59f635e6a36d887f62630491d1f7a1b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1HLx8cVMIzCuzicMSCTBax.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/1HLx8cVMIzCuzicMSCTBax.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b8a28745a35207e8deb236da9cb496dd2d5a4ee86bc2c37909e1b689342c74. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/475kvNxEy1k8D7oKuK4tzp.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/475kvNxEy1k8D7oKuK4tzp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a5c6ade2f6fbeadef5137cb00d0cdb8099c9aafbe1754c0e5ce8fb96bd95ff. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7KklppY8JeWQzBomC8lrZ3.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/7KklppY8JeWQzBomC8lrZ3.
{"copyright_id":"0x0991d3ae7aef6eeffb05c3ac379d940c3ca9c0b1932fc1aaff68f4900098fbfd","isrc":"QZHN92465814","name":"Floating, along","registered_at":"2026-06-19T13:13:18Z","spotify_id":"3OGsTCtBA1Xwgr05kzvCnu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0991d3ae7aef6eeffb05c3ac379d940c3ca9c0b1932fc1aaff68f4900098fbfd. 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/3OGsTCtBA1Xwgr05kzvCnu.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/3OGsTCtBA1Xwgr05kzvCnu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b48019b5dcc971a44da7bac5c1dbc3f322d1a5023790653456b5aa50ab5aba. 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/4LQW5oS3GahCsxoz5Pdm66.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/4LQW5oS3GahCsxoz5Pdm66.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e28969dee2763efcfab765944b35c64abea8d246d71d7f0c41835daad0a8090. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Coj2wvnsclQyLoEVROxVR.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/6Coj2wvnsclQyLoEVROxVR.
Down To The Sea - Kilometre Club Rework - Ocean Sounds Version
{"copyright_id":"0x2411f5f3f6e13dd4456ef965b588598eba5245d1181b0d2a3d0d6407914fac9f","isrc":"QZZ7W2471672","name":"Sea of Tranquility - Nature Version","registered_at":"2026-06-17T20:45:44Z","spotify_id":"5SnKq2UjI8MOeciTeWeTAs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2411f5f3f6e13dd4456ef965b588598eba5245d1181b0d2a3d0d6407914fac9f. 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/5SnKq2UjI8MOeciTeWeTAs.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/5SnKq2UjI8MOeciTeWeTAs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409f975807f5e5265f8e37080e2e1d3ef59f635e6a36d887f62630491d1f7a1b. 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/4yQShMdNx8JmVzhzIPMrx9.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/4yQShMdNx8JmVzhzIPMrx9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3095acecacff297792f095c7143e70315fa7c6493eb8091ee40e0028f34d42. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6A6CaOpwYovmkrgdNmD4ka.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/6A6CaOpwYovmkrgdNmD4ka.
{"copyright_id":"0x62b8a28745a35207e8deb236da9cb496dd2d5a4ee86bc2c37909e1b689342c74","isrc":"QZFZ42489087","name":"Stillness, far","registered_at":"2026-06-07T06:18:15Z","spotify_id":"2LfDhIi3OgwQBLAPRsjTNr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b8a28745a35207e8deb236da9cb496dd2d5a4ee86bc2c37909e1b689342c74. 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/2LfDhIi3OgwQBLAPRsjTNr.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/2LfDhIi3OgwQBLAPRsjTNr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c79802849242259475144026364226c75233ca2145b34f2cbe7af74875b31a. 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/5JK9ZfCxoeY1MPLhOTU1U2.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/5JK9ZfCxoeY1MPLhOTU1U2.
{"copyright_id":"0x06d69bea1ffc7ca9d2924c855445cfdaf16ef48d1619f22582e6328de8138df1","isrc":"QZTAY2435025","name":"Evening Grace","registered_at":"2026-06-09T07:05:55Z","spotify_id":"77phfNSLdU8aaZbQ6Sn9uW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d69bea1ffc7ca9d2924c855445cfdaf16ef48d1619f22582e6328de8138df1. 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/77phfNSLdU8aaZbQ6Sn9uW.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/77phfNSLdU8aaZbQ6Sn9uW.
{"copyright_id":"0x8e91e459d7a84217727b50aa54833e15deae115c0f950f3ea729f8e3d7197014","isrc":"QZTAY2435026","name":"Morning Glory - Nature Version","registered_at":"2026-06-07T19:28:00Z","spotify_id":"5Vcmfgn7iWDr8beNdd643j","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e91e459d7a84217727b50aa54833e15deae115c0f950f3ea729f8e3d7197014. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Vcmfgn7iWDr8beNdd643j.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/5Vcmfgn7iWDr8beNdd643j.
{"copyright_id":"0x1ea01f0c709aefbaf44e590b10c4d11ecfbb8be6e9c0cfc22c140184e809c0b0","isrc":"QZTAY2435027","name":"Evening Grace - Nature Version","registered_at":"2026-06-09T07:17:43Z","spotify_id":"0P6TDXYG3IKbTX0VCjBiIJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea01f0c709aefbaf44e590b10c4d11ecfbb8be6e9c0cfc22c140184e809c0b0. 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/0P6TDXYG3IKbTX0VCjBiIJ.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/0P6TDXYG3IKbTX0VCjBiIJ.