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 0x978827e42ab02ed342ab5923d5200fe2f178513d2bf6d65bfb1dc4b543fc4131. 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/17387a8f-58f3-4d96-ab38-103ecde2f733.json and https://artists.proofprofile.net/proofs/artist/17387a8f-58f3-4d96-ab38-103ecde2f733.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 0x3c0861cb5c27f455708202ef9570f6bbbb14e5cbc0fdf1c381e4506b9e0dd4f4. 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/DEB331860801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262b6d41e4289fb9ecaa1e67851123cec8c5796f4b3de21c9008dc2a63eaedde. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEB331860802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4d05a9a5c9158e2b74619dc451a9b9c9e37857571a756ad3a6fec0580f4101. 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/DEB331860803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3f392ce6b0c813ed50bde35e10d5ca5ec8b8db9ba7edcf68f8924b9819b582. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB331860804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc257e07a635f8699b4fdcc6675e2dbfa7a4aec0ed1a77de9c9a960866519541. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB331860805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd9947bd02b8317ad5dab2a91737b556b0a95a48b28a628c0fc642caffd4264. 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/DEB331860806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3d954f03086bf8085f0be45202f07f6bfe56cf81ff7df8c86f7a3e0dcd8df6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB331860807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bfdb6e8939ac79bb5f1fa79b36770588f0b1dc2a1ae71b4a6849f497ea35d8. 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/DEB331860808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960bf74eba2ceb682674419f75a416043e3a73f160bc111a46634f0b3782f45d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB331860809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012b896505554a3025681cf1844cfbb70f7009205ae6dc92ded7174db2a86cdd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB331860810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc038644901b95053c6eb0a06966e3c47cb01189ccc371bee63cdd1e3ad7787. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB331860811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a2b009672089a521642c83a84e2296c76b3943636865b688b0c18a46828ef4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB331860812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1938273f542d0bcd2476c9f98adbf1e99ebd942c728dbdee4a01bfde6976bf7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB330283401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3b2ebcc081a6ce49cad77d3a990cce6eb98f21a04ca9e5a85f5e4f79d98748. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB330283402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbeafb16c5a7d182742fd77f7f59ee23d58cca0baaf86e2d5580293f856a97d. 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/DEB330283403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04084300878b06a956453d2106b4c971b1d8346951c6d7063a55fc9e0017cdd. 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/DEB330283404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63c462d8e34b0e69c65f18cade53b0e3cd1d8b95c3ace5e8c4f49473263fcd7. 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/DEB330283405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95dd273e31a47f7350d3be36795e6e888490c3fc092ce56c773deddd080f0265. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB330283406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff3d6f557aa4ce94e0f659d1b60a14c7fa4e8c4df511c18242a1b183c6251e3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB330283407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f24cdcbf4ff2950d9e504179c82b8e81c499e0c0f1b3b082601d57903bc92b. 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/DEB330283408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29af4a947480aedcc6fe8ae56cb55ac2226f78f0ceacfd9774055adc087d97e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB330283409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376ff4d00f29bb21b8bdd788c423f19c80b94c62888a395a5b0183991f7c9c38. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB330283410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1468a6c570978e3d14f85c2d1abfe2f8b0154adbebfd8c089e1de38262b9f89a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB330283411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835f85c0cf4a82ba85383b95bb7c9b2acb7b464d5146baf22bb8adc9a0be1e6a. 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/DEB330283412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5737f7818e355355de456e1b5e0df7bb90ea85163c5201faaeda91b5a2d86b81. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEB330283413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0ccb7b53e1f856a9189acbd2e49998c572cf15921f2ac6355149deb6fba6d3. 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/DEB332382001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c85232803991adbb2c3a62b113bf21fadd49cd09bffa53815898a167f855e35. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEB332382002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56612c9b905c3261f7229648504cbb8710fe5cbec595ea80624665b14edbba6d. 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/DEB332382003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2b14d8d412a8d26d696a9b6a5ca96f40524092867bafa695fece541e016943. 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/DEB332382004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348feafec9bfbef566a6e6d21bebdef3b8ac0f10d1d4e4a8874e812940ad9217. 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/DEB332382005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc6ce5c6244254cbc9d2c305bfb77efce182a09e83fecec1056d6207b4164ef. 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/DEB332382006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2862500a439cd9518ba109e7189c8a30681b25ea4bb86964b678fc82b94970ff. 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/DEB332382007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b2cbf4e54bdcbe979d4d622b759886c6c2d50eff153fd3f3e04ec87218b708. 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/DEB332382008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf871f885ab65349a18fee2313d2aabeecb6bb6d38d8f198a17f7742d6cfe936d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB332382009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98f5dabad95006289118443041c0c4a3b055827537ae18e4444a16cde82e5d1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEB332382010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2da039d2b1043b974ef050d83cca9f68f83e5677b37b1ac7c5bc0a1fda5966a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEB332174201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33768008675499e35709c4fba5a55ffcc5af5acf455461d5155b8e850b0befb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB332174202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb48335edc8c7f5aa3a6fb8a80bd529bfeb5f92030115cf2c09ba3cf536e979. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB332174203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab6c9cbf713b2b6518c5c34c2e26d000f1fad296388729ccc3166552bb7a0dc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEB332174204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7b07cc6b681adc10f3aa53e28c193a30580bd1985818b1ae0a55bfdc2ea3f0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB332174205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c22bcdbc640880b845655ed2efe3aa287980e2d05f48a45ec54d989a8e4d49. 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/DEB332174206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29c38b4a90e4d5c3018aff9a67bcc3ca5516313663d05dd202a1078b8781cef. 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/DEB332174207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6436eb1b6c0a0ebeb1fe0c1457eb9d3524110ea87f79a48458b84fb92493d31. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB332174208.