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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c52ece351594ad4d4dc4acc61b9146495f4e17c412b2b4373b6f9e1ccc6765. 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/c02da33e-a108-4352-ab25-f1c0214648b2.json and https://artists.proofprofile.net/proofs/artist/c02da33e-a108-4352-ab25-f1c0214648b2.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc74627d46ad2072d3c904f4de12bb867f65c518dc28b1246366e1e723f4fb99. 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/QZ5AB1642599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ab6dd557cb04e1ef5d62a098d7c6337b737a814ece19009190c16420b418bf. 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/QZ5AB1642600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5373679a09808701b07e89aa1a7a0748e6716cd40760ea78bc023a25c40c4bcb. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZ5AB1642602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52148190ac0a830abaabc1951ec40ce9136acbdb9898356a008f4e23b8855d0e. 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/QZ5AB1642603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535728eeadc32bcbd7eaca8ab39972dda1dc820b54f63d10e9a2680845cc2dc4. 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/QZ5AB1642604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7a65910b15d18e273adcacfdcc0f638524b72913a9cd5307aa244be2edde99. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:37:46Z), 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/QZ5AB1642605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7497ace2ac18ee78e24297458e6463f13d155b39e7afffeb2aeb9fd8d33b9306. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZ5AB1642606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728eed72340686df50d4fbb96297c8b756b80e8c5c0444280d7768d960baacd4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZ5AB1642607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1401c7dd80b06f000d19dc264175c9cabf2433d94ae2d2ded2ab8cc6f9863b03. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZ5AB1642609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d101ce87d4e95638921948756eaca4c07b1e0bec75a09d8327b135ce677af4d. 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/QZ5AB1642610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03ed0ab945edc0151277adcebab2a2803038c84a35231ba99c95a8a85a34194. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:20:53Z), 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/QZ5AB1642601.
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 0xc399774924fe1e315ffd643f0c87401268c1c55cecd25315140dc6e7e968c27e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZ5AB1642608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa4589a4cc4e14fb842abc7c016e4fb957448d49cf17e4896518420afb4a4dc. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZ5AB1642611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14824548af796100761c051fb976599c26c8200632ac494b8a11f0422a03b8d7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZMZ92468125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1332b17856284bbdf3261ee8f39b881725016feed228361316d5d7765080a11. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GXBAV2455960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400f800a810aa1efd15650278c67840e5ac1c1ff7ebdc167cd1099989cf4fb7b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GXBAV2392069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799975f0caf5e92cd86f3906726281089483f75fc9078c2ffe0710b2a27bd0b0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GXBAV2325803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182d16f74f4e374b6a8fa210f28df6d2112452e6858927b932b7d2e008e9deae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SGW502354268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637cdadbe2349b81abf844786f6be23b7281c179732dfb0fbec9792d94e16b2f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLPF6766721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d70e34fd14e222811ab157701d017b199965a5679300e4ed841e7692a75776. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES69S1500571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff335979a34480f93a0e89bf382418173b4d6e3c556f689db3079ba169785ec7. 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/NLRD52212364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73af4f1684b64e6d2065763cbae7141558c7ffbef64a886facfbbd4f6b61cc63. 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/CH6542257313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddea82c1b664bb4fd41ee60ead18008e44e082087001968e2e107dd094181342. 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/GBLPF0286849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee29f30223739a1d1ff123f129ee07277488bdb60ae16e9551bb602ba5f0f07e. 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/ES69S1500452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0d01222e6437dca248cf5fca3a51713db0670ac57fac9420c86b6923e7e418. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLPF0264493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80053eb88201c920bf441cea8352a40cbfb7eba055654f785d754f54aa703e66. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNJX2463753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37da7786e9d86167f6e4205c85083a9d1515a3c5648b9eeddca443c85b29b9aa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZ4JJ1645736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d4ab84a60a199895dab97400576c15e3c3ac84a3e2e81e8384c6342394c74c. 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/QZ4JJ1645738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e569db465bef2f94bdc0a88c01f707e9fd042151943bb1a7510f91888fce83b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZ4JJ1645742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847ddc328145e834fd55868eba8fe34c028faf5bfa27dfea474e518ef2b06aa0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLPF6673026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb0668d793ab96d16df0aebd3d383ce139452416db33ac07c55f5260a521316. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZ4JJ1645737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b322b809f9320e8942406303246483fc0d1c66d58ae00bab9183a989a325153. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZ4JJ1645739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78428a858c693ef9442c40d7e269a08f778a1deae5ce887870b010d121de8d3a. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/QZ4JJ1645740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ec28a3bea4843842695d2ed7cd6ae353474e297e10527a3a622a612d9c5323. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM4TW2377151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ece08eafc576f93b71830018706814b066023b55b37cbbdfd5c59af0fa07e8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMDA72160670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17133840ba8b3c66e6d713cd519d0b2196595af2bb9639b776b78c5f631f342. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMDA62233646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb6aea10c9ae0e9d0e67b3644bb8997cd0bbb80a53d53355f72507b8bd86806. 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/QM4TW2215744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c44b3105f4ca73f1d3a29091a8bcc3b793166eace0239eec0dbd2be310762f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMDA62152656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947d840fb74ec99082cfee37ae9e6b3ba5697ebe296c45d07d5cde70a0786e23. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QM6P42141510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e0241378c6ac74ef4891b625e0ad22c8810652ee12b0a3352fcba2f49fa538. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLPF0265186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57574a910f0c4577ef8c9fcf9d4625264252c99bef3cb1f34ff0a2f5a7a6e13e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLPF0261355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d61301efc8d6c522ae254e40af526096282be0b8b1fd62b843866a4ec761d34. 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/QZTVM2418218.