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 0x88639e0f271cc2a75e0d7a59921767f5eeda5082c1bd094d4552e9453da27d69. 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/1877b8f6-2891-4065-bb21-03a0774ac371.json and https://artists.proofprofile.net/proofs/artist/1877b8f6-2891-4065-bb21-03a0774ac371.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 0x2e9d6dd70e204f436859660bdcad70b0e237ed865313557670e152d04d12670a. 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/QZNWT2264036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e2595f44d260ad1f79bd72eca379bcc40f0109bc9417fd991f9714b57d5ff0. 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/QZHNA2225625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3f9a7a56ff035d8395b8412d91edf708c43f651164557523660e8b6af5d5c1. 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/QZTAU2397422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540aad0750ec17d6321161ed772327ea7a1e77e3813a6909a5a4d5d4371346bd. 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/QZMEN2383400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71def2ce6875f9c758df22e0f88a9434086d359c4144542548318a3256834d79. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZK6Q2301828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c21c486fca39178934feaa0733ca08422323cccc3bf3602aa02d4c52c7d717f. 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/QZFZ72380749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d7bbd3462fed37ec6ff6f884ed922fa1077446e39cde948325a457a2f0657e. 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/QZK6H2265460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ec6df575c056fe8a2b6e753c80d289eff3e64c1246a7fe54d886425ee22def. 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/QZES72202063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2630511cee0057553a04c026e57099a537b1d4a4c9f33c0931f58f96d34aef. 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/QZDA42288784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb706884b336a7d6c1ac8f9951fbd42c895fb615030a41803e6e65485fab68103. 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/GBKPL2162767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a2dac3aa141bb0f229256b9e8eb64ef577e7dc7e3a744bc37e1b19b3c66868. 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/QZES52110675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726a3a66bcfd484650f87ec1bba9eb943061994d11ad1f2df749fbd845455bce. 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/QZFZ52108529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41a8748579f0a6dd1fa0b948cdde1258d06334e0c29dcba1a6cdaea988b9261. 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/QZFZ52108531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d34432b17c324e95a12303d23de63760fb971a819a8d3507b146cccf2f5315d. 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/QZNWY2004245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab8183bdbbb6d8d4c7fbe20cdc24e4a924a2d0a1623a79f0d7e22bce6df2b4c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNWQ2016817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf592fe6c89c2efca057fe6179061b6cd54ea99344ab831d230e001098a53611f. 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/QZNWQ2016818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81336ae17edcacaa41aad9a0b175c55569058dc839f8c68f24e2ac4176deadbf. 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/QZNWQ2016820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c8475dd9ea42f614b874a71d1922f2a9b2247890e97bf89df5cff5b83f66f5. 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/QZK6L2079664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67fd03bb44dd275577adbeaea4d1a673eb1d5ef16dc8dcf8056a832900c5821. 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/QZES82031972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeead773718cff94ea2fe07f03619b84d3edf37ca992d365f756ebda918b93e6b. 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/QZFYY2023869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47a2e0c344637787163c539dfc77174f4b23039ee44ae86dcb547ed017672b1. 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/QZHN31977144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe017190dfd02a6db95a0e1a1d3386283c35b8baf0db4a118525bce78d240fa. 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/QZES71883147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61e706c0fc94cf144cb2524411d80b36b8755c2553dfedad0b08ae9710f1d42. 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/PHW011800667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58475b2619a11b42d46e9ccc398faeee7f0a2dc433ab5c49d60673451b5c4310. 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/PHW011800668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8aae18cb4fc281235439b86dd7134554221bf1493c33ecfc132985ee65ca231. 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/PHW011800641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149efc047424aa397ee5092dc077aa1c14a630640b6b33b3e1e210aa4eea6b5f. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/PHW011800663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeea4bfa898d14892db7a01941b9c03e618fd986c83d6873d220d8ef6104a836. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/PHW011800664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149efc047424aa397ee5092dc077aa1c14a630640b6b33b3e1e210aa4eea6b5f. 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/PHW011800663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeea4bfa898d14892db7a01941b9c03e618fd986c83d6873d220d8ef6104a836. 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/PHW011800664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccb2e5736e1a4be4df29de931f43f2dc65ce3ac0a10b7ea6fc7a8887f06a7e8. 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/QZ8LD1721441.
Why Do I Still? [feat. May Angeles] (Unplugged)
Why Do I Still? [feat. May Angeles] - Unplugged
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1786b38f942b8a85a417c4350e3c5d0dd75e5cc428d84e7b58646996196dc742. 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/UST8K1739042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617396f4416b868ebe933482dc52c7ba38b78ab9a2c6f613824af01eb8ab7cd5. 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/USDHM1708075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee39ca5c6940b9b5ebcc8a4385e24898a7679210f1d84cf7c65bd3d49e22d1d. 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/USDHM1613078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30280ea5568f93cf34c6d70485e8317857386064738df133f05e072f37af3075. 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/USDHM1613079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9d6dd70e204f436859660bdcad70b0e237ed865313557670e152d04d12670a. 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/QZNWT2264036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a2dac3aa141bb0f229256b9e8eb64ef577e7dc7e3a744bc37e1b19b3c66868. 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/QZES52110675.