STM may refer to: Technology Scanning tunneling microscope, a non-optical microscope Signature-tagged mutagenesis, a genetic technique to create random mutants STMicroelectronics, a manufacturer o
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 0xef7c7196af9ce021640837e70cb980bff7caa94e6c5e20b1339f0e576ef6c612. 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/7aa2673e-f017-40ca-8942-87b564d1c0ab.json and https://artists.proofprofile.net/proofs/artist/7aa2673e-f017-40ca-8942-87b564d1c0ab.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 0xce89a6b7c38f23126681e0b8a08e86f8b0a5de07a883368ab3a1860f2ddb8172. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM42K2013692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937ba6eaa4ae9eea63890bebf7a5ef706593363da68d43ea8ef2a6beabbbaa82. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM42K2095946.
SAD EYES + infinity meter & blackwinterwells
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa472993a5fc2eafcd2475aceea070b5c29eb9b1f5856931aad8ec390baa7bef6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZKDK2283107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a61eb8275bffbc63c3401f2b2e34de9965c1efa581ca3eb4945042c2afe411e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMHL2284365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a174daf730de70c9d85e0bcd41d9f9b6f14a93afc1f24620edeefe1a4e3f763. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZMHN2220186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804e568069cfc455a8435d7f03634be3866706887b82e9594a0ee5761928f58e. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZMHL2288977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5f4ac995436ed61c8e14f5ea8f5149948396f168587e0b3e6583b20d92ba5f. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZMHN2204777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf44477a496cca7545919d05186ccc9e1cc47c2dcd1ce62d7a107fac2cfa8361. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZMHP2394792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f17d755a1ae389c4ec47f0c6c83147e096c2bbd0c3a0967b27b2138451eb0d3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZMHM2331885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf3671e0d9f398b7cad55020c0a1c5a82ea2a9b053c2628345005d80fa5a16a. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/CA5KR2446209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97beedebc3abbeab08216449e9ac97d12dda8e38b39432a3b76d9a21df2c5f50. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/CA5KR2446210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4298c0a13986f5f51aac4fd57752327fdcdb6c67aeeff1a5e83da65240fa2dd2. 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/UKZGC2405994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65979ddcff88e51ad2bb6dfea1ad56f87ca2120c24fc84b5f9e3b282c2f284e1. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QMFMF2433342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508e3dc90ec3c9d3cc6382b341a0b04c504a9e5a5816cdb597a2520c2d29c893. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/UKZGC2500507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb152abf184aefd6ab98b660b70c781ed759976089563bc8cfb845e35d5394cbb. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/UKZGC2500508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d875ff1275d08fda33b68f40a2031a6759b057f6192e78a7ff5508031a51b59. 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/QZPEW2498006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad9703e31099e764749752427c1e7a566e1a2507749afb7c2f2b97dad592013. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZS642364168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6b01b91e5f3a4e1278373b5768b739edc3c9fede52981393d519eb905a103f. 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/QZS632304340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6f16907d8735688013b2782a59382570745584f0b65fc7aac17d9d38716ad5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QM42K2309874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d80dfa68abb250af1747e43705b2680ca85bfd38a96c361c63a30711f36c3fd. 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/QZMHK2013950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408e36af6f1313a7ded3d1d9e08de3be364790fd4a5e1f8d377e988ef34c3eaf. 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/CA5KR2485872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b2e87de03d94e59350525f468d8a2047b9cf943aea5bc6a90c752c196e2cb7. 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/PLC062504685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479eb4aa3c7c824ddc3859b42cfb7a89bbda7a968d9c1cd82ee9998c5a2eedcf. 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/PLC062504687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2558da1f6fbab530eaa90fc4031d2d65b45c22d84889356f0f94fc6bf4f4de2a. 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/PLC062504688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd69b651dbab8bc555346e1721c3598ee1cdf91790b8e64aa8b7e53098b6ce7f. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/PLC062504689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b24775b05da94ce8e3cba76575ff6e7c48c8c18ff591c6402456dc01a61d1e. 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/PLC062504691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f9e61c6bc7b3cedab8d5462112313fbcfaaac263f85097e39e75876bcee5ad. 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/FR96X2419266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cf56aad5dc2e9ce6a24da43050f6e9cdf39ea1a81e629facebee3295c6fc01. 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/DGA0Q2430095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf164c6be6363f59e4a574ffb886d44d700aeddd421e09a0b05606453397b8005. 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/DGA082314145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88329f56d2b74563ea3d07eeab545830450da19d0dd2457bb9e97c10ed1f839. 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/DGA062346464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780f8d1341618bd3c7c5c0fb417538acf51c203e49ed1416586d84e5683b1929. 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/FRX762339694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb3c0b8a907eb49ff093d742121948689d72208ea39cf5e902a6318e5954692. 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/FRX762339696.