thumb|Then Comes Silence in Helsinki 2017 Then Comes Silence are a Swedish gothic rock and post-punk band, formed in 2012 in Stockholm. Their music draws inspiration from horror and spiritism. Band
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 0x8b24b418ba5908996940193a93dca933564cd823b0edf1f311af345bad2f759d. 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/8d2ee859-de7f-47f1-a75f-ad03e5ab5fac.json and https://artists.proofprofile.net/proofs/artist/8d2ee859-de7f-47f1-a75f-ad03e5ab5fac.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 0xbcaf03600cf7a42aefadad6a174e5a19ffc290b1eedcc1d5df8830edc3a4beec. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SELNA1500103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cd0732b48fd07068ad834e2a1b411d02fd295a19bf0bc2993258e4c32e86d1. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:30:49Z), 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/SELNA1500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35244e215f6c21124373a9d70c4212d1e8f65566aedd4a843270fb0c99d3da7a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SELNA1500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44b6018e842c7119d7296252c362e24f5ff3b499207257712605ae970b2da97. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:35:54Z), 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/DED831700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0738e2e5b343da421762b21029122a5e402c3a2cb68aff5c397f16666fc9f8. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/DED831700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74671b10ba9600e02e9cf1c8ba20d5e7eea61cf50ed4492f42972a1dc1c9860. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/DED831700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b747d8dff1ee129f7c6aeb2fe0f0d6a4a37282f183135e5eaf65066d8a9bcb. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/DED831700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c53ad65e14c1b20a04963c23da9c5a85007b6aaf141e08691aa0d7ae0da98a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/SEWHB1900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbd34026cf70115647ee250934850747b985cb6a957894227e6694ff3778ccc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEWHB1900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3514d3711df24fdad1fa695a1915f76998f9e089d3822f35aec0beb53713cd2a. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/SEWHB1900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10666494af2e2838944e358a641969068e2d49cfca0a8421f43dceffee78387f. 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/SEWHB1900105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ede97f0e772122261fb8fe272d01644f2a3f6d843a9ad4044247d243830b18e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEWHB1900106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf06bf371ce4df3b86e3081f9104ae6707a251dd88c5fae09c1183ce5c46d29. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/SEWHB2100302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d45544c9f862d2d4bfc81b654e9020d4f8d82e4cc22c56f8c73fd30b3e2d6fe. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), 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/US57M2435501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc424d5944e6a9fed01166f500ba9dfa86327dd9391e159eedf94ab27f6456bf5. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:19:33Z), 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/US57M2435502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8ca762e459d7d9a857797a895147fbc8f16f570a1cda1b0e4f8a9bd5163ff8. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:57:41Z), 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/US57M2435503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001349469ee85c181e20724831a951dc6df78dc5d0b8fe9cb3e0e12873b486b4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US57M2435505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f857c4ee2d4b8984a05a54da350428575c21f45813d5da21f560dd69c99e72. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SEWHB2100312.
Dias Y Años - Days And Years Spanish Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4267c99b416c636a22d0f920bf7455d6d5c8d77db7dd156d76dc9436c40ac7c3. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:07:44Z), 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/SEWHB2100314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fab2dd53f29aea242c910c9546bfb5726f21ae9b81f6ac18ed6667a97c8e519. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/SEWHB2100315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678bfa5456b1521cb6fb3a6bd11b3483d9813e97ff82f45d36e2744ed5d27909. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/SEWHB2100316.