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 0x4b91f86ce888cfb42c11713f850c3dbdee7cd4eceaf5ddb3f703546463ff7b9d. 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/904f9e37-582c-4f14-93bb-2fb1e85cdf8d.json and https://artists.proofprofile.net/proofs/artist/904f9e37-582c-4f14-93bb-2fb1e85cdf8d.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 0x2bf99c6bc363c34ee5294365c770277facb616a9eff450fcd92d2f2c48b03d63. 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/QZTAW2203070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b5d7078096ed2ac11abbb072249f475f63581a5b359f3f098715606a7f204c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/IT9PZ2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2fbdf6cf1cd0b53ad2e14262e39282179513b0f2e74188ecf73bedba783243. 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/IT9PZ2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1520aa54227df3597845e4313d1f7dd1ea1b308bbfadf5a462358003018fa568. 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/IT9PZ2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc80fca9545c4534bd6304615e3a59879aa0866a5ff8b250076239ed6054a6e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/IT9PZ2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb415d059653d7608c98d685df9af10fbf95b0a9d7a00a7861f9fad4672ba4665. 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/IT9PZ2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbbf95bfc750e0e8fea89392ac390bfbe450e0fc54116dd6ad41072128d5645. 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/ITRWL1800174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b6b4cd73948685aafbfbf4070c47cea419d0ddd820413cf76dcf57244c778b. 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/ITRWL1800175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff81d50b727f4b4e2f3bcb359b6e82d6c9c6c85e03ec54e3df8c2d2ec0dc0bf8. 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/ITRWL1800176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c9f31ae633172178d99c24a1804a10a4f7f197a547d9ed175a590829eea042. 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/ITRWL1800177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8179ae8accf87989c5d2108bd7f8c7b66b7741dba2133c384aa8d280e3f9106e. 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/ITRWL1800179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2f8116647e5ce78c583fc3ebf1c526396eac758f5f6517de51076f67bd2faa. 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/ITRWL1800180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed5eac9ac464dcb73b009b0bb05c20992443119596b9d484fd3079ffdf9bb69. 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/ITRWL1800181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6591904f7fb4da322ae35d807e00188c7a2e1c693e1df761b243b3286a52e43a. 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/ITRWL1800182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bd97b076dc1d3d19ab974083cc572bb8019dff86bee3bffdff7473c7d51ff2. 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/ITDF62204001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d15c45f572bf14b804c080d476d7a2d9c20434e14b0e0650222697ef78df5c. 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/ITDF62204002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d55abf33027dd306d2d77fda0a426d6be577106ecbf2276b0ebd233053c62f2. 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/ITDF62204003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908c18f5926ac5af87b89cc2c8f5b6ea1d5710ef724877b3b4dd0cfa0710eb6d. 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/ITDF62204004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce001c9393468c4975a7ee3757ce6b6921bde92b0a0f48886e2b1df3536e3b0. 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/ITDF62204005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16c6f1d969e516901ee62181381a3bb0599178bdb5eadaab99c245ae0e9e455. 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/ITDF62204006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9d5254157efc448f6dec80eb58dd663c6eb30f99f226cc8da5b21716913b89. 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/ITDF62204007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4781f00808e47da6f8e4ed355bc414f539d1d3553e76da0a25a4c52c34d92db. 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/ITDF62204008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179b466bb65e14450d3996edd9f83a4fe5180e78c71988fe5c791ac29b1d4168. 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/ITDF62204009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e75d95b4be81ed386f2a136704a46a7b04bbdacd31d35679b870dff4303dd68. 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/ITDF62204010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bb0d4dd74305d9fa3694b704acd0fb28aa81413a3fafa17e2fee4e6d75fbf3. 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/ITDF62177504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bb0d4dd74305d9fa3694b704acd0fb28aa81413a3fafa17e2fee4e6d75fbf3. 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/ITDF62177504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37688fbcb3e1ff5cf1d2c3fb761c99fad5b027b92bac0b2a53d2c7681098a7b7. 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/ITDF62077188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a30da7fa3fa31f8760c2e4b09b100b10c15371ab5e13855c460d0e66f1c1cd. 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/ITDF62077189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73609bbcdc363f6af7a5debc0c392372d2325fe83e1ec6a46e6b381d9c22b2fd. 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/ITDF62077190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104312562f058aaf2b46fc783eac14b45c08db1f3dcea6bd2c59f691fefd8243. 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/ITDF62077192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fed1ec29ac1fadcd78144f64936a6140ee55ce620cffca35e2ab67aa0600e6. 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/ITDF62077193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd624194bd8c37fb193b452130bb44cd21a803901b72d0f4df31e47d3a7224262. 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/NLRD52027828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb284dc85c4be68f40ad07991c0a0cd98c82e162ed526bac72da1e1fcdb667518. 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/NLRD52027829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20aecefae1e6a2961295cd012e1e30cf4d9be1bee7936ea94b39d9f237ec9c7. 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/NLRD52027830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fffa5333f3b8b6755e945dfe4b3e17e968e54d9b143b5b89a2fe81ef20055b5. 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/NLRD52027831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c79843acb8dfabf055196bfcce23bb241fc2905328633ea37b21958b9045095. 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/NLRD52027832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee62919b6fb41a289ae7bbd83177d8535e3f6e0ec1b3f01ee08f18c6e9bef9e2. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T19:03:58Z), 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/QZFZ52040287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef2e84fe1d931eda9ba6739bab993cc944bae18dd2b34ff48200c7f75d94059. 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/NLRD52027833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55513f3e1e124a0c49d2c32191dad8bd885dc8a22e14e41015db81dfeade146. 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/ITRWL2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4842bcc0d0c71da702f108ec47967de1ebc06c266027e3fc4c48c7dfbf5c638. 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/ITRWL2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbccc2886c7d8e1f89519e3f6dcada204ba603c528e36afcfe2ede929e861a7. 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/ITRWL2000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee62919b6fb41a289ae7bbd83177d8535e3f6e0ec1b3f01ee08f18c6e9bef9e2. 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/QZFZ52040287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd7c3620a1242b243c9a4b00c794e89217f56e2a9580a233a909280c12d16c8. 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/ITUEK2200037.
Piccolo Manuale Di Guerriglia Discografica: Parte Seconda