The Silberhorn (; 3,704 m) is a pyramid-shaped mountain of the Bernese Alps, to the northwest of the Jungfrau of which it is a satellite peak. A first attempt to reach the summit of the Silberhorn wa
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 0xa61d31cac84034cd1c766674aa7efbc389541657557acf6acea1e9b15ebcfbd0. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d089a61-8b8e-48fc-95e1-03ede9108621.json and https://artists.proofprofile.net/proofs/artist/0d089a61-8b8e-48fc-95e1-03ede9108621.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 0x9150c06d3640ebac3bd7083b4ef52d66fb60c976284e61ea43f7980f5e035717. 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/GBMJG2222730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12f9a86292eed968f631259b0bd563789c1d0f3ac486f0765df088cdaf3dcd7. 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/GBMJG2222731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc284769b60a28942530653c4d26f586e06274197ec91f6420e26130962583f21. 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/GBMJG2222732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e90b9a4b37f6995d87a5c7fe46996bfda60f0860c8de71b1b47984519df41b1. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBMJG2222733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0bca3a11e59ff7f4eb7edf13cbac7bfe030cc8b76acbd84668a73d831a1b3f. 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/GBMJG2222735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78105d8f360e6cc99b71a58e66f32ff8cf105860c37c3639b232441b1349b30. 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/GBMJG2222736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec90bb0c6584a190763412d1f66e3b6a3816054f3be83ebcf29ec6fc6a2b546. 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/GBMJG2222737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a10742a3f93c9f46d37ad9c5f1a8182e4e2a1d82d8637291f0206fcb357f91. 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/GBMJG2222738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf854e51abf1d46da58ea27f14e7b0fc5315be8344c31651a46b02ce7fabc7a8. 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/GBMJG2222739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae17366d4f990e6599993fc1c3313b5852c830bdf0584074b51c441190133751. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBMJG2222740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6daaa383a466e08860229bbb97282992fa18f72843e846c5f9c7967b90b851f1. 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/GBMJG2222741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c16191f00e113275ca2ece912f5ff125e1b6372c81530b1214502f1e79cd66. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBMJG2222742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd619086b20937d719b9e9aaeee2abf0d21c083b9fb78f0856a6ce03bc25298b. 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/GBMJG2222743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66dd880af4ecef2ebcb36091ff4584ba3cf262b06b826e6ee4e1d86858fbefa. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBMJG2222744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cd8b4d4131e4a28f231e18b992f878a70a0623b7ca8060fc68452e2e4db712. 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/GBMJG2222745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8659f842b2e22686ad197c1d41ac933fa8c1fb15b3fec65514e18117a094f4. 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/GBMJG2222746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6cedc0d3eb0182386efc96a85aceb1097762728c2f8aee5bcc8da7c1dc5d31. 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/GBMJG2222747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d1c047a5578f7b656d8394e38080637fcb02b1fe1c1d907908a9ef0422ea5f. 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/GBMJG2222748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810fc69f405cce397f7a7899b23d27d390382a9de5764d79287ad25872b07ffb. 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/GBMJG2222749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57009ab97dcc6b8519ccd3a228b609ea92e1b084faec6a6d93d4726b02a85fb9. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBMJG2200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78096842ae579b7d7a4696e7bef3179c17b5e19c6b55cfe62e544d3720dc2b7d. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBMJG2200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadae2fe2d76855b5af2e344b380112e9907abcf772ce3f2138efb8f60e977fe1. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/GBMJG2200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37288bbfef7b17633387f9abde575269a248ae57466693c0705540f817a08717. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBMJG2200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67398e003dd164f7b94fc6a8d0612a45a204dfb81a0c9139294f726126f9d29. 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/GBMJG2200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153371053784ea2bdc9603e78d0758c9b7b32a0a8b0b4577b76384b268156a84. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBMJG2200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2542a2a25201de6eea7c3b5f50bdc92e131ac6bde656162827a6134821613a06. 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/GBMJG2200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc8459df033acb0479b3d7a22479d0af281cf5d98d57a2d4fbb9867a2bec884. 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/GBMJG2200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c387cdee4ab7d811b09a787b773e533d04df4fa61ddaa57ed280df70c9f6c2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBMJG2206705.