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 0xca593ff1f7d24609521a87c2b7132c7b79595c9d3dd678cab7edc0e737f65da3. 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/c82db500-96a7-4184-8a71-6a23c1ae3d20.json and https://artists.proofprofile.net/proofs/artist/c82db500-96a7-4184-8a71-6a23c1ae3d20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xdaa149b4ff41ee1e32baa88a9938301ec971bdf00b48e35ef1086aff1a66f29c","isrc":"QZK6Q2283269","name":"Flawless Freestyle","registered_at":"2026-06-10T07:12:19Z","spotify_id":"4QH3Lm7dKvatO66K1urtV4","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 0xdaa149b4ff41ee1e32baa88a9938301ec971bdf00b48e35ef1086aff1a66f29c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4QH3Lm7dKvatO66K1urtV4.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/4QH3Lm7dKvatO66K1urtV4.
{"copyright_id":"0x3b3bb695f9ec75af06e7c676abc5119ac38c41ac3c93a7a3cfd19aa29765dd7e","isrc":"QZHN32146990","name":"60 Bar Freestyle","registered_at":"2026-06-19T06:20:11Z","spotify_id":"1BxWT9cyXoJF86s3mDxPJr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3bb695f9ec75af06e7c676abc5119ac38c41ac3c93a7a3cfd19aa29765dd7e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1BxWT9cyXoJF86s3mDxPJr.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/1BxWT9cyXoJF86s3mDxPJr.
{"copyright_id":"0x42f30c7966b597772e2bd0abf68072fd7c7d431d671fdc208dd5f17c5b1c58bc","isrc":"QZFYZ2283227","name":"1k Or No Way","registered_at":"2026-06-22T08:42:29Z","spotify_id":"3Eo74QrkFXkmRjHRFcRNvP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f30c7966b597772e2bd0abf68072fd7c7d431d671fdc208dd5f17c5b1c58bc. 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/3Eo74QrkFXkmRjHRFcRNvP.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/3Eo74QrkFXkmRjHRFcRNvP.
{"copyright_id":"0xdaa149b4ff41ee1e32baa88a9938301ec971bdf00b48e35ef1086aff1a66f29c","isrc":"QZK6Q2283269","name":"Flawless Freestyle","registered_at":"2026-06-10T07:12:19Z","spotify_id":"0VfA4XENSKDRZjnZ9FJGEd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa149b4ff41ee1e32baa88a9938301ec971bdf00b48e35ef1086aff1a66f29c. 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/0VfA4XENSKDRZjnZ9FJGEd.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/0VfA4XENSKDRZjnZ9FJGEd.
{"copyright_id":"0x9729a78c5464d9623020d1eea4b64b64fa2f48c62feee758fb2fa0fe49b1b43e","isrc":"QZK6N2250639","name":"Henry Ovalle","registered_at":"2026-06-22T08:39:56Z","spotify_id":"0SY4ZS7LahnX3oxDgbH8UJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9729a78c5464d9623020d1eea4b64b64fa2f48c62feee758fb2fa0fe49b1b43e. 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/0SY4ZS7LahnX3oxDgbH8UJ.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/0SY4ZS7LahnX3oxDgbH8UJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ded5bad26c0334f6893961f65fcbcb84bcff919fbce6997b3d61465d159e89. 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/4KqW3z7diF0E0EgQfkyf1p.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/4KqW3z7diF0E0EgQfkyf1p.
{"copyright_id":"0x3b3bb695f9ec75af06e7c676abc5119ac38c41ac3c93a7a3cfd19aa29765dd7e","isrc":"QZHN32146990","name":"60 Bar Freestyle","registered_at":"2026-06-19T06:20:11Z","spotify_id":"4iYYZkUkudBq0ZbWPJvXF7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3bb695f9ec75af06e7c676abc5119ac38c41ac3c93a7a3cfd19aa29765dd7e. 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/4iYYZkUkudBq0ZbWPJvXF7.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/4iYYZkUkudBq0ZbWPJvXF7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae923075de60459155aae07a46eb708f60fcacc59bb19338866d318279bd363. 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/3oHCmGpxu4DW4pnayid5jF.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/3oHCmGpxu4DW4pnayid5jF.
{"copyright_id":"0x9fabfa0b8a8ef2316a1918d169208cf2d7963efd3d36357d02ce0c1fdb447161","isrc":"QZES62290851","name":"Cap Freestyle","registered_at":"2026-06-22T08:39:00Z","spotify_id":"46heF2mzRCmzvGtTcPbvSt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fabfa0b8a8ef2316a1918d169208cf2d7963efd3d36357d02ce0c1fdb447161. 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/46heF2mzRCmzvGtTcPbvSt.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/46heF2mzRCmzvGtTcPbvSt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96533371303d16ba4b1f06c039b9f4159f6694c0c90f222acbeaa62b3961f7ff. 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/5jdJlcwSBT7wr4Yk3xeWbY.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/5jdJlcwSBT7wr4Yk3xeWbY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd106965a8e7febc8181822faac6a3a3437e64f1b37b89f09ff10a6c59fd28ba. 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/5WgxRKZSh2AI6laQPkjkNM.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/5WgxRKZSh2AI6laQPkjkNM.
{"copyright_id":"0x0a4fb849d10baa1b1796c82e8f63e8f0fe41c4c13eaa5f2e3dc64fe7edd52942","isrc":"QZTB22281732","name":"No Hook 4","registered_at":"2026-06-18T05:49:28Z","spotify_id":"5alu7Fm9s6FBbXRlUkqIir","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4fb849d10baa1b1796c82e8f63e8f0fe41c4c13eaa5f2e3dc64fe7edd52942. 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/5alu7Fm9s6FBbXRlUkqIir.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/5alu7Fm9s6FBbXRlUkqIir.
{"copyright_id":"0x42f30c7966b597772e2bd0abf68072fd7c7d431d671fdc208dd5f17c5b1c58bc","isrc":"QZFYZ2283227","name":"1k Or No Way","registered_at":"2026-06-22T08:42:29Z","spotify_id":"0kW53wtelWINSiHCPJCypa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f30c7966b597772e2bd0abf68072fd7c7d431d671fdc208dd5f17c5b1c58bc. 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/0kW53wtelWINSiHCPJCypa.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/0kW53wtelWINSiHCPJCypa.
{"copyright_id":"0xdaa149b4ff41ee1e32baa88a9938301ec971bdf00b48e35ef1086aff1a66f29c","isrc":"QZK6Q2283269","name":"Flawless Freestyle","registered_at":"2026-06-10T07:12:19Z","spotify_id":"4ASVkc9Xd1vwwdFruE0Th6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa149b4ff41ee1e32baa88a9938301ec971bdf00b48e35ef1086aff1a66f29c. 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/4ASVkc9Xd1vwwdFruE0Th6.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/4ASVkc9Xd1vwwdFruE0Th6.
{"copyright_id":"0x9729a78c5464d9623020d1eea4b64b64fa2f48c62feee758fb2fa0fe49b1b43e","isrc":"QZK6N2250639","name":"Henry Ovalle","registered_at":"2026-06-22T08:39:56Z","spotify_id":"2IMYAUdvzC2YlbyKmcbVZm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9729a78c5464d9623020d1eea4b64b64fa2f48c62feee758fb2fa0fe49b1b43e. 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/2IMYAUdvzC2YlbyKmcbVZm.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/2IMYAUdvzC2YlbyKmcbVZm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ded5bad26c0334f6893961f65fcbcb84bcff919fbce6997b3d61465d159e89. 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/79SV3H8He66IZnTv98olXp.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/79SV3H8He66IZnTv98olXp.
{"copyright_id":"0x3b3bb695f9ec75af06e7c676abc5119ac38c41ac3c93a7a3cfd19aa29765dd7e","isrc":"QZHN32146990","name":"60 Bar Freestyle","registered_at":"2026-06-19T06:20:11Z","spotify_id":"0Zajbn78afo4vNVmwJ8Xhe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3bb695f9ec75af06e7c676abc5119ac38c41ac3c93a7a3cfd19aa29765dd7e. 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/0Zajbn78afo4vNVmwJ8Xhe.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/0Zajbn78afo4vNVmwJ8Xhe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae923075de60459155aae07a46eb708f60fcacc59bb19338866d318279bd363. 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/2o0cIQQAigXroeg1j1H47U.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/2o0cIQQAigXroeg1j1H47U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fabfa0b8a8ef2316a1918d169208cf2d7963efd3d36357d02ce0c1fdb447161. 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/5KJ5NwyScz5CHhIdD249Xi.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/5KJ5NwyScz5CHhIdD249Xi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc019b1d51e6d32778c78967f6d89cb6107f0b6678339744db2e2dc4a466148e9. 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/4NbozukY2a14M0slNqia3b.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/4NbozukY2a14M0slNqia3b.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96533371303d16ba4b1f06c039b9f4159f6694c0c90f222acbeaa62b3961f7ff. 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/5crsyKJnl9Eht4CY23PIr2.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/5crsyKJnl9Eht4CY23PIr2.
Brightest Days And Darkest Nights (Reloaded)
{"copyright_id":"0x3ae4be05332f4d04744910ebe62adca83c48a48a0f34a765778247ca3d00b222","isrc":"QZHN72459724","name":"BRUCE WILLIS - Remix","registered_at":"2026-06-29T17:03:01Z","spotify_id":"6mPEwjyAG8AmwjvQlx8SNK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae4be05332f4d04744910ebe62adca83c48a48a0f34a765778247ca3d00b222. 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/6mPEwjyAG8AmwjvQlx8SNK.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/6mPEwjyAG8AmwjvQlx8SNK.
{"copyright_id":"0x458e89c93402f991f39b1825076ac0103344b574e55f2ffffa44a733ce594fe1","isrc":"QZHN82444982","name":"PECULIAR FELLOW (Professional Capper)","registered_at":"2026-06-29T17:04:26Z","spotify_id":"5Mq79cdUGscZFdaSXknzzi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458e89c93402f991f39b1825076ac0103344b574e55f2ffffa44a733ce594fe1. 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/5Mq79cdUGscZFdaSXknzzi.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/5Mq79cdUGscZFdaSXknzzi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48da2bb66dee8e7c570bddea6d12c7ab7e7eae7f1b7232e3cc793c399c1a2821. 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/3oaNLYnxXzq0gTK0CIQC8f.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/3oaNLYnxXzq0gTK0CIQC8f.
{"copyright_id":"0xf60539f8ec845be729e44c17ff748cbec4df4f4096beffe9e7f1918c47bad93b","isrc":"QZHN62509258","name":"FENDI SHOES","registered_at":"2026-06-29T17:03:11Z","spotify_id":"0CyCuUeclYZHLmRh10oaxn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60539f8ec845be729e44c17ff748cbec4df4f4096beffe9e7f1918c47bad93b. 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/0CyCuUeclYZHLmRh10oaxn.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/0CyCuUeclYZHLmRh10oaxn.
{"copyright_id":"0xef7eb1a0f90bd9fdf0f034b9f99e1202c3e12871d6e73faddb659afcc0ec7f99","isrc":"QZFYX2492167","name":"Kurt Angle","registered_at":"2026-06-20T12:06:25Z","spotify_id":"1HoRAg90GWWWb1p7Z7VvmI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7eb1a0f90bd9fdf0f034b9f99e1202c3e12871d6e73faddb659afcc0ec7f99. 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/1HoRAg90GWWWb1p7Z7VvmI.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/1HoRAg90GWWWb1p7Z7VvmI.