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 0xc0df52200827f4c17fd9024ab2e7541948381aec7b1953fc10cd0474eeaaa7af. 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/64a37140-3a57-43b4-a6c7-cd1b566386b4.json and https://artists.proofprofile.net/proofs/artist/64a37140-3a57-43b4-a6c7-cd1b566386b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x4ca83985fd852957eeccf5880c1da22c6a449e569e067b13c8f2cd99c0cb3177","isrc":"USIR19601007","name":"Irresponsible Hate Anthem","registered_at":"2026-06-04T10:10:41Z","spotify_id":"7wyVuNCEr1j8NfG1vwMXZp","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 0x4ca83985fd852957eeccf5880c1da22c6a449e569e067b13c8f2cd99c0cb3177. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7wyVuNCEr1j8NfG1vwMXZp.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/7wyVuNCEr1j8NfG1vwMXZp.
{"copyright_id":"0x7dbfdd6a77b9d8e3a0bfd53abf6947e8418bc0350056cead540f486fd10765e7","isrc":"USIR19601008","name":"The Beautiful People","registered_at":"2026-06-01T04:53:10Z","spotify_id":"2aIB1CdRRG7YLBu9hNw9nR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbfdd6a77b9d8e3a0bfd53abf6947e8418bc0350056cead540f486fd10765e7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2aIB1CdRRG7YLBu9hNw9nR.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/2aIB1CdRRG7YLBu9hNw9nR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b085422d63476196cca5ee8d1a9de34243c8a964a4d01576deeb3b375c13427. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2YGwSRjcY4Hjz6fktW9619.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/2YGwSRjcY4Hjz6fktW9619.
{"copyright_id":"0x8de0aadfa3c37bdf4907601f1ca5ea841164486ec2f7422a6b81b55bc40e8e27","isrc":"USIR19601018","name":"Antichrist Superstar","registered_at":"2026-06-04T08:51:07Z","spotify_id":"6XN91pyNTEtP2o1SZY5Cwk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de0aadfa3c37bdf4907601f1ca5ea841164486ec2f7422a6b81b55bc40e8e27. 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/6XN91pyNTEtP2o1SZY5Cwk.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/6XN91pyNTEtP2o1SZY5Cwk.
{"copyright_id":"0xbbf51fbd9ec507c84adadeeabe264a13f8f2037a7be3d3479b1d43f800a09f8f","isrc":"USIR19801991","name":"User Friendly","registered_at":"2026-06-05T06:53:31Z","spotify_id":"6JhkNS62fXEiSTVKvou61C","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf51fbd9ec507c84adadeeabe264a13f8f2037a7be3d3479b1d43f800a09f8f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6JhkNS62fXEiSTVKvou61C.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/6JhkNS62fXEiSTVKvou61C.
{"copyright_id":"0x24bf9e176aa25eb9cf57d83790e932b3fa8626b5dcd1b9eda1e414f196084df8","isrc":"USIR10300252","name":"This Is the New Shit","registered_at":"2026-06-04T16:20:11Z","spotify_id":"4b4eQqhpgmJsy4dP07V7cG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bf9e176aa25eb9cf57d83790e932b3fa8626b5dcd1b9eda1e414f196084df8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4b4eQqhpgmJsy4dP07V7cG.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/4b4eQqhpgmJsy4dP07V7cG.
Music From The Motion Picture Not Another Teen Movie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013e1405ec8379400798aa52683070839b488135ac23ac21474b47723567a17c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1ANc3O9jWyP6B9f4WQkiad.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/1ANc3O9jWyP6B9f4WQkiad.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa137d8f5b3e1da2ed6750a68367a445185162e8d99db4b53182b3338b1b8b84c. 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/7Fu7RDsJZAZtk4NJHLjKj7.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/7Fu7RDsJZAZtk4NJHLjKj7.
{"copyright_id":"0x80c31c49882ea2eb3279c5a835ef31fd4d36d5d9609faded2f68dfd320228869","isrc":"USIR19500314","name":"Sweet Dreams (Are Made Of This)","registered_at":"2026-06-21T20:48:43Z","spotify_id":"09QgJffEVNJC6GJ4oylER8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c31c49882ea2eb3279c5a835ef31fd4d36d5d9609faded2f68dfd320228869. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/09QgJffEVNJC6GJ4oylER8.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/09QgJffEVNJC6GJ4oylER8.
{"copyright_id":"0x7dbfdd6a77b9d8e3a0bfd53abf6947e8418bc0350056cead540f486fd10765e7","isrc":"USIR19601008","name":"The Beautiful People","registered_at":"2026-06-01T04:53:10Z","spotify_id":"4zd8KNk7hlABtgJqLYfvaC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbfdd6a77b9d8e3a0bfd53abf6947e8418bc0350056cead540f486fd10765e7. 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/4zd8KNk7hlABtgJqLYfvaC.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/4zd8KNk7hlABtgJqLYfvaC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64ce4ff3e32f1ff95284c0c6bc227265ef78f4bca0ebe2c11d6b792d972ccf5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0II8G1h7J6BGsAA5Sc7Lth.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/0II8G1h7J6BGsAA5Sc7Lth.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bc4791700d361e6bc901fb62614e727064646572fa40c46444dcd383c8f45d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1HiV8vDg7l9eKp6abjvA7P.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/1HiV8vDg7l9eKp6abjvA7P.