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 0x1edb33c0cb21a581643e8da815ceb062fc0402b0584ee7d49ab6f17081a57d9f. 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/7c842bbd-3511-4505-ab42-57612fff9d0e.json and https://artists.proofprofile.net/proofs/artist/7c842bbd-3511-4505-ab42-57612fff9d0e.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 0xd665ede4a0c8c4bbd691b58eff722513407589e4737c5e9071e6634ff95f5f75. 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/CH4132300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805ef51cac8faade718d214dcc6fbcdbca4051823de1813e6d836c81c6f5bfeb. 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/CH4132300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee910b46273e23a2b97d8ee43a6111b6567f6c507a43fc010d5efafb71bffb4. 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/CH4132300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2429c09d1205deb4403955277d4dfe436275a1454c791c0d6c36e49b9727c3. 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/CH4132300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe221229149344016c34504cac9965efeaa203764a9ff7d64d12c07d8804ed222. 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/CH4132300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430d46830973c1c813336c2cafde46d5a4148d70d9f06a5cf1f9335046afc29e. 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/CH4132300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75680d0e21ced25038640dea3f1883ea13bcd37f3864584d46d9ac6300dccf1. 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/CH4132300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d4c8c50f7445edfccf0a1967c0863c9b9989abfca70dce49b33930bc83cfe0. 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/CH4061901665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77750b41509e1b1c042760e2a70127a2e36c180258d091a64d16892d9891270. 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/CH4132300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bedd3693e77a7ee2bfb6e5e35f71e6ea2ef0eadaca5060c55b4acc856b263b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CH4132300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe389c7d8b27602b6c4eda6584c58228fefd5a1f4700ac01ad99087973e5ce6bc. 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/CH4061801538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cab719e1c87121d7c368df5296fcb00aee2448c9fca09b4f2451a644a13553d. 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/CH4061801535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc580cf6c9318bcfaa90b03566181c10e172b1abbe88a6fc43421f95313ce2c32. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CH4061801534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacfde31e7bc253b3c216906da6b44b2cda7cea4209c4e20f1e3129b7560361e. 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/CH4061801539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7520e8e738840dbc5a2f740a2b8892f678737daa3e2566b3cce9c87fc19bfb. 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/CH4061801533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760b17602a6fd1760381aa699c25a97497aa8722aafbe7fbbc5dc7fc8c869265. 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/CH4132400191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1d14a8075fd7360cfaa4d2f95d13863a07bbf7164f3495688326752658be69. 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/CH4132400189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ba46d4c96a7c6db4bf0d86d477073f05bac6c611297fcf95656520d8806a21. 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/CH4132400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401016d681e2ac83518d9a2ec0c1c2c51976131663cc63e750d3c109b48d752b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CH4132400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15592a6f8990df15d5909781dc92eb4f688d00efedf58a15fdc1ba9eb2f71f8. 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/CH4132400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1d14a8075fd7360cfaa4d2f95d13863a07bbf7164f3495688326752658be69. 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/CH4132400189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401016d681e2ac83518d9a2ec0c1c2c51976131663cc63e750d3c109b48d752b. Chain 2 (Bitcoin): anchored in block 957242 (2026-07-09T01:00:33Z), 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/CH4132400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401016d681e2ac83518d9a2ec0c1c2c51976131663cc63e750d3c109b48d752b. 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/CH4132400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15592a6f8990df15d5909781dc92eb4f688d00efedf58a15fdc1ba9eb2f71f8. 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/CH4132400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ba46d4c96a7c6db4bf0d86d477073f05bac6c611297fcf95656520d8806a21. 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/CH4132400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15592a6f8990df15d5909781dc92eb4f688d00efedf58a15fdc1ba9eb2f71f8. 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/CH4132400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ba46d4c96a7c6db4bf0d86d477073f05bac6c611297fcf95656520d8806a21. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CH4132400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ba46d4c96a7c6db4bf0d86d477073f05bac6c611297fcf95656520d8806a21. 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/CH4132400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1d3e37dce9677f1e5ddcf6ccaf14e9596f406d7d815ce9efc97a87bb5ce5fd. 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/CH4132400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe221229149344016c34504cac9965efeaa203764a9ff7d64d12c07d8804ed222. 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/CH4132300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805ef51cac8faade718d214dcc6fbcdbca4051823de1813e6d836c81c6f5bfeb. 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/CH4132300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee910b46273e23a2b97d8ee43a6111b6567f6c507a43fc010d5efafb71bffb4. 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/CH4132300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd665ede4a0c8c4bbd691b58eff722513407589e4737c5e9071e6634ff95f5f75. 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/CH4132300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430d46830973c1c813336c2cafde46d5a4148d70d9f06a5cf1f9335046afc29e. 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/CH4132300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d4c8c50f7445edfccf0a1967c0863c9b9989abfca70dce49b33930bc83cfe0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CH4061901665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f90a340ad90f549e0b871c8f19bd9b937d80d0e68076ef14dfa0430e52b516. 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/QZMEM2285414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d064e13e8cf889ed7d2c7f88d4c7cc53225caa58f9174ee1c62e23658223334. 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/QZK6G2210964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9158f488aa28f537bcc73d17d216479271fdbbc2e773b7a4fbe0e9d0856ee1e1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZK6K2272453.
It's Time I Be Me Now (From Sami, Joe und ich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fd330e4f2356da407e55e795aa4553808d44f9b50e46171d9e41ab6ab66201. 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/CH4061901605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdfffe6bb47c0c642b4cfd050954b5c08d4c9827a8148598cee1bf91388656b. 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/QZES62174927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d0fe0c2e4f806ac71ac06fb1c576ebfdffef12d63a1279db4a66ac11e3f85a. 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/CH4061901573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a8e1b0a9a993111488c86bf5ea5cffd04f05108b80982c60f12318b01e3ae0. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CH4061901545.